fix(platform-wallet): fold per-account records into one wallet-level row, owned roles winning collisions - #4438
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…row (dashpay#4387) Upstream check_core_transaction emits ONE TransactionRecord PER MATCHED ACCOUNT for a single transaction — net_amount is documented "Net amount for this account" — while the persisted `transactions` row is keyed by txid alone. Whichever record drained last therefore defined the row: a multi-account spend persisted one account's slice as the whole wallet's net (field case: a 15-input full-balance sweep stored as −0.005 instead of −2.61920199 — every duff of the S22 ZenLedger reconciliation's residual). fold_same_txid_records() merges same-txid record groups at the two seams where siblings co-occur — the BlockProcessed projection (one block inserts several per-account records) and CoreChangeSet::merge (per-event records folded across a drain batch): net = Σ slices (disjoint per-account detail sets, so the sum is the wallet's Σreceived − Σspent), details unioned by index, fee from the funding record, direction recomputed from the merged net, identity fields from the funding record. Order-preserving; groups of one untouched; contact-watch-only records are already filtered upstream of both seams. Cross-batch stragglers keep the persister's txid-uniqueness semantics — the Android-side OUTGOING mirror heal covers rows persisted before this fix (or split across batches), and goes inert on rows this fold writes. 67/67 changeset tests green, including the dashpay#4247-era contact-watch-only projections unchanged, plus new coverage for the S22 sweep shape and the distinct-txid no-fold contract. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
…same-txid record fold A cross-account spend (CoinJoin-funded send with BIP44 change) emits one record per matched account, and the slices DISAGREE on the change output's role: the funding account's slice carries it as Sent (its account-local view cannot attribute the sibling account's address), the owning account's slice as Change. fold_same_txid_records seeded its output union from the funding record and kept the base entry on index collision, so Sent won — and every UTXO projection over the folded record (record_new_utxos_ffi ignores the changeset's new_utxos by design and re-derives from record output_details, filtering to Received|Change) silently dropped the wallet's own change while the folded net_amount stayed correct. Observed on-device 2026-08-19: the corrected record rows landed in the store, the TXO rows never arrived, and the Layer-1 reconcile tripwire healed 4 missing TXOs at SYNCED. On collision the owned role now wins unconditionally: ownership is account-scoped knowledge, so exactly one slice can carry Received/Change for a given output index. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughThe wallet change set now folds records with the same transaction ID into one wallet-level record. Block processing uses this folding, with tests covering amount aggregation, transaction separation, and output-role collision precedence. ChangesTransaction record folding
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🟠 High · up to The current change can persist incorrect transaction amounts when the same account record is emitted in both detection and confirmation flows, potentially doubling wallet activity in stored data. It also changes the documented ordering of folded records, so the PR is not merge-ready until these correctness issues are fixed or explicitly accepted. Suggested reviewers: Sequence Diagram(s)sequenceDiagram
participant BlockProcessed
participant fold_same_txid_records
participant WalletRecord
BlockProcessed->>fold_same_txid_records: collect and fold records by transaction ID
fold_same_txid_records->>WalletRecord: merge amounts, details, fee, direction, and metadata
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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🕓 Ready for review — 2 ahead in queue (commit 2fbc7b6) |
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Inline comments:
In `@packages/rs-platform-wallet/src/changeset/changeset.rs`:
- Around line 375-376: The merge flow in CoreChangeSet::merge currently sums
re-emitted records for the same transaction and account. Update
fold_same_txid_records or the merge preparation to coalesce duplicate (txid,
account_type) records by retaining the newest state before summing distinct
account slices, then add a regression test covering detection followed by
confirmation and asserting the net amount remains unchanged.
- Around line 339-348: Update the folding logic to insert the merged record at
the first group position, using group[0] rather than base_pos as the output key.
Retain base_pos only for sourcing funding metadata, including the zero-net
direction fallback.
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packages/rs-platform-wallet/src/changeset/changeset.rspackages/rs-platform-wallet/src/changeset/core_bridge.rs
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Preliminary review — Codex only
The owned-output collision rule works for the tested block shape, but the fold still has four blocking data-integrity defects: it conflates lifecycle snapshots with account slices, depends on opportunistic batching for mempool slices, loses richer direction semantics, and erases the owning account needed for UTXO persistence. Two additional issues affect ordering and catch-up performance.
Source: reviewer backend model gpt-5.6-sol (Codex general, rust-quality, and FFI lanes); final verifier backend model gpt-5.6-sol; CodeRabbit inline evidence independently checked; openclaw-agent/cliproxy/gpt-5.6-sol is orchestration-only, not reviewer evidence.
Validated blockers were found in the Codex precheck. Opus is deferred until a fresh Codex revalidation clears the blocker gate.
Review provenance
- Codex reviewers:
gpt-5.6-sol— general (completed),gpt-5.6-sol— rust-quality (completed),gpt-5.6-sol— ffi-engineer (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet: not run (deferred by blocker gate)
🔴 4 blocking | 🟡 2 suggestion(s)
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These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/rs-platform-wallet/src/changeset/changeset.rs`:
- [BLOCKING] packages/rs-platform-wallet/src/changeset/changeset.rs:289-348: Repeated lifecycle snapshots are summed as if they were account slices
`CoreChangeSet::merge` combines independent wallet events, including a `TransactionDetected` event and a later `BlockProcessed.updated` snapshot for the same transaction. These records repeat the same account contribution rather than representing disjoint account slices, but the fold groups only by txid and sums both amounts. A -100 mempool record followed by its -100 confirmed snapshot therefore becomes -200. Since `base_pos` selects the first record with inputs, it also retains the earlier `Mempool` context instead of the newer `InBlock` context. Resolve successive observations with latest-snapshot semantics before aggregating distinct account slices, and add a detection-then-confirmation regression test.
- [BLOCKING] packages/rs-platform-wallet/src/changeset/changeset.rs:342-347: Net-sign recomputation erases Internal and CoinJoin directions
`TransactionDirection` is not determined solely by `net_amount`. Upstream assigns `CoinJoin` from `transaction_type` and assigns `Internal` when wallet inputs produce only wallet-owned outputs. A cross-account internal transfer normally has a negative wallet net equal to its fee, so the fold relabels it `Outgoing`; even a zero-net transfer retains the funding slice's account-local direction rather than deriving wallet-level `Internal`. A multi-account CoinJoin with a nonzero net is likewise rewritten as `Incoming` or `Outgoing`. Recompute direction from the merged transaction type and input/output roles using the same semantics as upstream.
- [BLOCKING] packages/rs-platform-wallet/src/changeset/changeset.rs:289-308: The fold erases output ownership required by the C/Swift persistence boundary
The merged record keeps the funding record's `account_type` while moving sibling-account output details into it, and `OutputDetail` has no owning-account field. `WalletChangeSetFFI::from_changeset` then buckets records solely by `rec.account_type` and derives every added UTXO inside that bucket. Swift stores the enclosing account on `PersistentTxo`, and the restart path emits that account's tags before Rust inserts the UTXO into the corresponding account map. In the regression test's CoinJoin-funded/BIP44-change shape, the owned output is now retained but persisted and restored as a CoinJoin UTXO rather than a BIP44 UTXO, corrupting per-account balances and fund-selection state. Preserve each owned output's original account association through a separate per-account persistence projection while folding only the wallet-level transaction row.
- [SUGGESTION] packages/rs-platform-wallet/src/changeset/changeset.rs:339-348: Keep the folded record at the first group position
The function documents that a fold keeps the group's first position, but when the first slice has no inputs and a later slice is selected as `base_pos`, line 339 drops the first slice and line 348 inserts the result at the later funding position. Any unrelated records between those slices consequently move ahead of the folded transaction. Use `group[0]` as the output position and retain `base_pos` only as the source of funding metadata.
- [SUGGESTION] packages/rs-platform-wallet/src/changeset/changeset.rs:375-376: Each buffered event rebuilds the complete txid index
The adapter calls `CoreChangeSet::merge` once per buffered event, up to `ADAPTER_STORE_BATCH_LIMIT`, and each call now rebuilds a `BTreeMap` over all records accumulated so far. For N distinct record events, a single drain performs O(N² log N) comparisons and repeatedly allocates tree nodes, on the historical catch-up path whose batching exists to drain events at projection speed. Append records while constructing the batch and perform the event-aware fold once immediately before committing each wallet's completed batch.
In `packages/rs-platform-wallet/src/changeset/core_bridge.rs`:
- [BLOCKING] packages/rs-platform-wallet/src/changeset/core_bridge.rs:694-698: Mempool account slices are folded only when scheduling puts them in one adapter batch
`BlockProcessed` carries all account records together and is folded directly, but live mempool matching emits one `TransactionDetected` event per account. Those slices meet only if the adapter's opportunistic `try_recv` drain happens to place them in the same persistence batch. The adapter can store the first event before the producer sends the next, causing each fold to see a singleton and the later txid upsert to replace the earlier slice. That nondeterministically reproduces the incorrect wallet net this PR is intended to fix. Aggregate at a boundary that guarantees all records for one transaction are complete rather than using the persistence drain boundary.
| let mut merged = records[base_pos].clone(); | ||
| let mut net: i64 = 0; | ||
| let mut seen_inputs: BTreeSet<u32> = merged.input_details.iter().map(|d| d.index).collect(); | ||
| let mut seen_outputs: BTreeSet<u32> = | ||
| merged.output_details.iter().map(|d| d.index).collect(); | ||
| for &i in group { | ||
| let r = &records[i]; | ||
| net = net.saturating_add(r.net_amount); | ||
| if merged.fee.is_none() { | ||
| merged.fee = r.fee; | ||
| } | ||
| if i != base_pos { | ||
| for d in &r.input_details { | ||
| if seen_inputs.insert(d.index) { | ||
| merged.input_details.push(d.clone()); | ||
| } | ||
| } | ||
| for d in &r.output_details { | ||
| if seen_outputs.insert(d.index) { | ||
| merged.output_details.push(d.clone()); | ||
| } else if matches!(d.role, OutputRole::Received | OutputRole::Change) { | ||
| // Index collision across account slices: the slices | ||
| // are only detail-disjoint for details the accounts | ||
| // AGREE on. An output owned by account B appears in | ||
| // funding account A's slice too — as `Sent`, because | ||
| // A's account-local view cannot attribute B's | ||
| // address. Keeping the base's entry on collision let | ||
| // that `Sent` win, and every consumer deriving UTXOs | ||
| // from the folded record (record_new_utxos_ffi, | ||
| // derive_new_utxos filter on Received|Change) then | ||
| // silently dropped the owned output — the store lost | ||
| // the wallet's own change while the folded net_amount | ||
| // stayed correct (2026-08-19 device run: records | ||
| // landed corrected, TXOs never arrived, the reconcile | ||
| // tripwire healed 4). Ownership is account-scoped | ||
| // knowledge: exactly one slice can carry | ||
| // Received/Change for an index, so on collision the | ||
| // owned role wins unconditionally. | ||
| if let Some(existing) = | ||
| merged.output_details.iter_mut().find(|o| o.index == d.index) | ||
| { | ||
| if !matches!( | ||
| existing.role, | ||
| OutputRole::Received | OutputRole::Change | ||
| ) { | ||
| *existing = d.clone(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| drop_idx.insert(i); | ||
| } | ||
| } | ||
| merged.net_amount = net; | ||
| merged.direction = match net.cmp(&0) { | ||
| std::cmp::Ordering::Less => TransactionDirection::Outgoing, | ||
| std::cmp::Ordering::Greater => TransactionDirection::Incoming, | ||
| std::cmp::Ordering::Equal => records[base_pos].direction, | ||
| }; | ||
| folded.insert(base_pos, merged); |
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🔴 Blocking: Repeated lifecycle snapshots are summed as if they were account slices
CoreChangeSet::merge combines independent wallet events, including a TransactionDetected event and a later BlockProcessed.updated snapshot for the same transaction. These records repeat the same account contribution rather than representing disjoint account slices, but the fold groups only by txid and sums both amounts. A -100 mempool record followed by its -100 confirmed snapshot therefore becomes -200. Since base_pos selects the first record with inputs, it also retains the earlier Mempool context instead of the newer InBlock context. Resolve successive observations with latest-snapshot semantics before aggregating distinct account slices, and add a detection-then-confirmation regression test.
source: ['codex']
| // One block can insert SEVERAL per-account records for one | ||
| // transaction (a multi-account spend); fold them into the one | ||
| // wallet-level record the txid-keyed row needs | ||
| // (dashpay/platform#4387 — see fold_same_txid_records). | ||
| crate::changeset::changeset::fold_same_txid_records(&mut cs.records); |
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🔴 Blocking: Mempool account slices are folded only when scheduling puts them in one adapter batch
BlockProcessed carries all account records together and is folded directly, but live mempool matching emits one TransactionDetected event per account. Those slices meet only if the adapter's opportunistic try_recv drain happens to place them in the same persistence batch. The adapter can store the first event before the producer sends the next, causing each fold to see a singleton and the later txid upsert to replace the earlier slice. That nondeterministically reproduces the incorrect wallet net this PR is intended to fix. Aggregate at a boundary that guarantees all records for one transaction are complete rather than using the persistence drain boundary.
source: ['codex']
| drop_idx.insert(i); | ||
| } | ||
| } | ||
| merged.net_amount = net; | ||
| merged.direction = match net.cmp(&0) { | ||
| std::cmp::Ordering::Less => TransactionDirection::Outgoing, | ||
| std::cmp::Ordering::Greater => TransactionDirection::Incoming, | ||
| std::cmp::Ordering::Equal => records[base_pos].direction, | ||
| }; | ||
| folded.insert(base_pos, merged); |
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🟡 Suggestion: Keep the folded record at the first group position
The function documents that a fold keeps the group's first position, but when the first slice has no inputs and a later slice is selected as base_pos, line 339 drops the first slice and line 348 inserts the result at the later funding position. Any unrelated records between those slices consequently move ahead of the folded transaction. Use group[0] as the output position and retain base_pos only as the source of funding metadata.
source: ['coderabbit']
| self.records.extend(other.records); | ||
| fold_same_txid_records(&mut self.records); |
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🟡 Suggestion: Each buffered event rebuilds the complete txid index
The adapter calls CoreChangeSet::merge once per buffered event, up to ADAPTER_STORE_BATCH_LIMIT, and each call now rebuilds a BTreeMap over all records accumulated so far. For N distinct record events, a single drain performs O(N² log N) comparisons and repeatedly allocates tree nodes, on the historical catch-up path whose batching exists to drain events at projection speed. Append records while constructing the batch and perform the event-aware fold once immediately before committing each wallet's completed batch.
source: ['codex']
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@bfoss765 — heads-up: the first commit here is your fold fix from the keystore integration branch ( 🤖 Generated with Claude Code |
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Composition data point from device testing #4439's branch (which does NOT include this fold): coin balances and the TXO store converge without this PR, but multi-account transaction-history rows persist a single account slice — the same wallet's history net-sum converges only on bases that include this fold. So #4439 alone fixes funds; this PR is what makes the displayed history sum truthful. Relevant when weighing the review blockers here: the fold's absence is a user-visible history defect, not just an internal nicety. 🤖 Generated with Claude Code |
…tion boundary Addresses the five blocking review findings on the same-txid record fold: - Mempool slices no longer depend on drain scheduling: the TransactionDetected projection rebuilds the wallet-level row from ALL account slices the manager holds for the txid (mempool records are never pruned), so an event carrying one slice still yields the full fold and the persisted row converges no matter how events land in adapter batches. - Repeated lifecycle snapshots are no longer summed: records entering CoreChangeSet::merge are complete wallet-level snapshots, so merge coalesces same-txid records NEWEST-WINS (position-stable) instead of folding, and a detection followed by its confirmation keeps the unchanged net and the confirmed context. This also removes the per-merge full-vec re-fold (the O(N^2 log N) drain cost). - Direction is recomputed over the merged details with upstream's own rule (CoinJoin from the transaction type; no Sent output + our inputs + our outputs = Internal), instead of the net's sign, which erased Internal and CoinJoin. - The fold keeps the most advanced context in the group and lands at the group's FIRST position, so unrelated records never reorder and a confirmed context never regresses to a stale mempool one. - Output ownership survives the FFI boundary: the changeset now carries the raw per-account slices in `account_records`, and WalletChangeSetFFI::from_changeset derives utxos_added / utxos_spent from those slices (transaction rows still come from the folded records), so a sibling account's change TXO lands in its owning account's bucket instead of the funding account's. SQLite is unaffected (it resolves accounts by address lookup). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
# Conflicts: # packages/rs-platform-wallet-ffi/src/core_wallet_types.rs
| Vec<&key_wallet::managed_account::transaction_record::TransactionRecord>, | ||
| Vec<&key_wallet::managed_account::transaction_record::TransactionRecord>, | ||
| )> = Vec::new(); | ||
| for rec in &cs.records { |
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[P1] Preserve provider-account transaction involvement
Only cs.records populates transaction rows, so after folding, the transaction callback is emitted solely for the funding account; sibling account_records buckets contain UTXOs but no transaction. Both Swift and Kotlin create provider-special account involvement from the enclosing transaction callback, and restart restoration selects provider transactions through that involvement. A ProReg/ProUp transaction funded by a Standard account but also matching Provider Owner/Voting accounts is therefore recorded only as Standard and disappears from provider restoration/masternode aggregation after restart until a rescan. Preserve transaction involvement for every owned account slice—either emit the folded row into each involved account bucket or add an explicit involvement projection—while retaining the single wallet-level transaction values.
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Fixed in 2fbc7b6. Verified the finding first: Swift's upsertTransaction appends the enclosing bucket's account to involvedAccounts and Kotlin writes TransactionAccountInvolvementEntity(txid, account.id) — both only from the per-bucket transaction callback, so funding-bucket-only emission did drop payload-only provider involvement.
from_changeset now emits each folded row into the bucket of every account that owns a slice of its txid (funder included, deduped). The row's values are identical in every bucket — the persisted row is txid-keyed and account-agnostic, so duplicate upserts converge — and only the enclosing bucket differs, which is exactly what the involvement join records. TXO deltas stay slice-bucketed.
Pinned by two tests: txos_route_to_their_owning_accounts_bucket now asserts both buckets carry the row with identical wallet-level values, and the new payload_only_provider_account_still_receives_the_transaction_row models the reported shape — a ProviderOwnerKeys slice with no input/output details still receives the row. Side benefit: a bucket carrying a TXO now always carries its parent transaction row.
… bucket The Swift/Kotlin per-account transaction callback is the sole writer of the tx-to-account involvement join (involvedAccounts / transaction_account_involvements), and payload-only matches — a ProReg/ProUp payload hitting a provider owner or voting key with no TXO in the account — depend on that join for restart restoration. Emitting the folded wallet-level row only in the funding account's bucket dropped the sibling accounts' involvement, so a provider transaction funded by a Standard account vanished from provider restoration and masternode aggregation after restart until a rescan. from_changeset now emits each folded row into the bucket of every account that owns a slice of its txid (funder included). The row's values are identical in every bucket — the persisted row is txid-keyed and account-agnostic, so the duplicate upserts converge — and only the enclosing bucket differs, which is exactly what the involvement join records. TXO deltas stay slice-bucketed as before. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…ed-row test The #4438 test initializer merged from v4.2-dev predates this branch's observed_input_conflicts field; the PR merge target did not compile. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
5 participants
Issue being fixed
Closes #4387.
Two stacked defects in how one transaction's per-account record slices become the single persisted
transactionsrow:Sent(its account-local view cannot attribute the sibling account's address) and in the owning account's slice asChange. Seeding the union from the funding record keptSenton index collision — and every UTXO projection over the folded record (record_new_utxos_ffi,derive_new_utxosfilter onReceived|Change) then silently dropped the wallet's own change while the folded net stayed correct. Observed on-device 2026-08-19: corrected record rows landed, their TXO rows never arrived, the store-side reconcile tripwire healed 4 missing TXOs at sync.What was done
fold_same_txid_records— per txid group, net is the sum of slices, input/output details are unioned, fee from the funding slice, direction recomputed, identity fields from the funding record.Received|Changefor a given index.How this was tested
platform-wallet suite: 675 passed, 0 failed — including the fold's own tests and a new regression test (
fold_prefers_owned_output_role_on_index_collision) with the exact device shape: funding slice says Sent, owning slice says Change, folded record must say Change. Device-validated as part of the reconcile series: after this fix a CoinJoin-heavy testnet wallet's corrective records deliver their TXOs and the store-side reconcile reports zero heals across restore, rescan, and relaunch.🤖 Generated with Claude Code
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