Program: 168756
Project: 168756
Buggy source:
protected DirtyAttributeFlusher<CollectionAttributeFlusher<E,V>,E,V> determineDirtyFlusherForNewCollection(UpdateContext context,V initial,V current){
  EqualityChecker equalityChecker;
  if (elementDescriptor.isSubview()) {
    equalityChecker=EqualsEqualityChecker.INSTANCE;
  }
 else {
    equalityChecker=new IdentityEqualityChecker(elementDescriptor.getBasicUserType());
  }
  List<CollectionAction<Collection<?>>> collectionActions=determineCollectionActions(context,initial,current,equalityChecker);
  if (collectionActions.size() == 0 && !elementDescriptor.shouldFlushMutations()) {
    if (current instanceof RecordingCollection<?,?>) {
      ((RecordingCollection<?,?>)current).resetActions(context);
    }
    return null;
  }
  if (inverseFlusher != null) {
    if (current instanceof RecordingCollection<?,?>) {
      ((RecordingCollection<?,?>)current).resetActions(context);
    }
    Map<Object,Object>[] addedAndRemoved=getAddedAndRemovedElements(current,collectionActions);
    Map<Object,Object> added=addedAndRemoved[0];
    Map<Object,Object> removed=addedAndRemoved[1];
    List<CollectionElementAttributeFlusher<E,V>> elementFlushers=getInverseElementFlushersForActions(context,current,added,removed);
    return partialFlusher(false,PluralFlushOperation.ELEMENT_ONLY,Collections.EMPTY_LIST,elementFlushers);
  }
  if (collectionActions.size() > current.size()) {
    if (current instanceof RecordingCollection<?,?>) {
      ((RecordingCollection<?,?>)current).resetActions(context);
    }
    if (elementDescriptor.shouldFlushMutations()) {
      return getReplaceOrMergeAndElementFlusher(context,initial,current);
    }
 else {
      return getReplaceOrMergeOnlyFlusher(context,initial,current);
    }
  }
 else {
    if (current instanceof RecordingCollection<?,?>) {
      RecordingCollection<Collection<?>,?> recordingCollection=(RecordingCollection<Collection<?>,?>)current;
      recordingCollection.initiateActionsAgainstState(collectionActions,initial);
    }
    if (elementDescriptor.shouldFlushMutations()) {
      List<CollectionElementAttributeFlusher<E,V>> elementFlushers=getElementFlushers(context,current);
      if (elementFlushers == null) {
        return this;
      }
      if (current instanceof RecordingCollection<?,?>) {
        ((RecordingCollection<?,?>)current).resetActions(context);
      }
      return getReplayAndElementFlusher(context,initial,current,collectionActions,elementFlushers);
    }
 else {
      if (current instanceof RecordingCollection<?,?>) {
        ((RecordingCollection<?,?>)current).resetActions(context);
      }
      return getReplayOnlyFlusher(context,initial,current,collectionActions);
    }
  }
}

Fixed version (ground truth):
protected DirtyAttributeFlusher<CollectionAttributeFlusher<E,V>,E,V> determineDirtyFlusherForNewCollection(UpdateContext context,V initial,V current){
  EqualityChecker equalityChecker;
  if (elementDescriptor.isSubview()) {
    equalityChecker=EqualsEqualityChecker.INSTANCE;
  }
 else {
    equalityChecker=new IdentityEqualityChecker(elementDescriptor.getBasicUserType());
  }
  List<CollectionAction<Collection<?>>> collectionActions=determineCollectionActions(context,initial,current,equalityChecker);
  if (collectionActions.size() == 0 && !elementDescriptor.shouldFlushMutations()) {
    if (current instanceof RecordingCollection<?,?>) {
      ((RecordingCollection<?,?>)current).resetActions(context);
    }
    return null;
  }
  if (inverseFlusher != null) {
    Map<Object,Object>[] addedAndRemoved;
    if (current instanceof RecordingCollection<?,?>) {
      addedAndRemoved=getAddedAndRemovedElements((RecordingCollection<?,?>)current,context);
    }
 else {
      addedAndRemoved=getAddedAndRemovedElements(current,collectionActions);
    }
    Map<Object,Object> added=addedAndRemoved[0];
    Map<Object,Object> removed=addedAndRemoved[1];
    List<CollectionElementAttributeFlusher<E,V>> elementFlushers=getInverseElementFlushersForActions(context,current,added,removed);
    return partialFlusher(false,PluralFlushOperation.ELEMENT_ONLY,Collections.EMPTY_LIST,elementFlushers);
  }
  if (collectionActions.size() > current.size()) {
    if (current instanceof RecordingCollection<?,?>) {
      ((RecordingCollection<?,?>)current).resetActions(context);
    }
    if (elementDescriptor.shouldFlushMutations()) {
      return getReplaceOrMergeAndElementFlusher(context,initial,current);
    }
 else {
      return getReplaceOrMergeOnlyFlusher(context,initial,current);
    }
  }
 else {
    if (current instanceof RecordingCollection<?,?>) {
      RecordingCollection<Collection<?>,?> recordingCollection=(RecordingCollection<Collection<?>,?>)current;
      recordingCollection.initiateActionsAgainstState(collectionActions,initial);
    }
    if (elementDescriptor.shouldFlushMutations()) {
      List<CollectionElementAttributeFlusher<E,V>> elementFlushers=getElementFlushers(context,current);
      if (elementFlushers == null) {
        return this;
      }
      if (current instanceof RecordingCollection<?,?>) {
        ((RecordingCollection<?,?>)current).resetActions(context);
      }
      return getReplayAndElementFlusher(context,initial,current,collectionActions,elementFlushers);
    }
 else {
      if (current instanceof RecordingCollection<?,?>) {
        ((RecordingCollection<?,?>)current).resetActions(context);
      }
      return getReplayOnlyFlusher(context,initial,current,collectionActions);
    }
  }
}