Fix EMCal Digitization

Author: mhemmer-cern

Detectors/EMCAL/simulation/src/Digitizer.cxx

@@ -142,10 +142,11 @@ void Digitizer::process(const std::vector<LabeledDigit>& labeledSDigits)
           label.setAmplitudeFraction(0);
         }
         if (iLabel == 0) {
+          ++iLabel;
           continue;
         }
         d.addLabel(label);
-        iLabel++;
+        ++iLabel;
       }
       listofLabeledDigit.push_back(d);
     }
@@ -269,4 +270,4 @@ void Digitizer::setEventTime(o2::InteractionTimeRecord record, bool trigger)
   } else {
     mIsBeforeFirstRO = false;
   }
-}
+}