The UnitOfWork2 IsEmpty property does not appear to be looking to see if there are entities to save in the _collectionsToSave nor _collectionsToDelete collections. As a result, IsEmpty may return true when there are adds/updates/deletes to be performed. Is this a bug, or by design?

Which LLBLGenPro runtime library version are you using?

public bool IsEmpty =>
    !(_entitiesToDelete.Any() || _entitiesToSave.Any() || _collectionsToDelete.Any() || _callBacksPostDelete.Any() || _callBacksPreDelete.Any() ||
      _callBacksPreInsert.Any() || _callBacksPreUpdate.Any() || _deleteEntitiesDirectlyCalls.Any() || _updateEntitiesDirectlyCalls.Any() ||
      _insertEntitiesDirectlyCalls.Any());

You're right! We'll fix it

Fixed in hotfix builds 5.10.4 and 5.11.2

We are on 5.10.0.0. We will update to get the fix. Thank you.