[Rom1-B]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes !47343, Serialization of 'Closure' is not allowed when saving MailCollector with OAuth authentication #171
• Saving a mail collector with "create a new authorization" redirects to the OAuth provider, but the request crashed with an HTTP 500 because the callback kept in session could not be serialized.
• The authorization flow now completes and the new mailbox is linked back to the mail collector.

glpi.CRITICAL: *** Uncaught PHP Exception Exception: "Serialization of 'Closure' is not allowed"

Screenshots (if appropriate):