Store WorkItemID by a local variable

[WJsjtu]

HoudiniEngineForUnreal/Source/HoudiniEngine/Private/HoudiniPDGManager.cpp

Lines 1649 to 1660 in 24a7e9e

	FTOPWorkResult& WorkResult = InTOPNode->WorkResult[Index];
	if (WorkResult.WorkItemID == INDEX_NONE || !WorkItemIDSet.Contains(WorkResult.WorkItemID))
	{
	HOUDINI_PDG_WARNING(
	TEXT("Pruning a FTOPWorkResult entry from TOP Node %d, WorkItemID %d, WorkItemIndex %d, Array Index %d"),
	InTOPNode->NodeId, WorkResult.WorkItemID, WorkResult.WorkItemIndex, Index);
	WorkResult.ClearAndDestroyResultObjects(HoudiniComponentGuid);
	InTOPNode->WorkResult.RemoveAt(Index);
	InTOPNode->OnWorkItemRemoved(WorkResult.WorkItemID);
	NumRemoved++;
	bChanged = true;
	}

WorkItemID should be stored as a local variable before line 1656, since reading a value of referenced structure that has already been destructed (line 1657) can be dangerous. When debugging editor or game with strict address case (e.g. enable unreal build with ASan), it always crashes.