Jira issue originally created by user romanb:
When having a proxy object, say "PhonenumberProxy? extends Phonenumber", and its not yet loaded from the database I think an error occures in the UnitOfWork::_computeChangeSets function since it goes and retrieves that lazy load object value using an instance of "ReflectionProperty?". However with it being lazily loaded the value must be null.
Issue was closed with resolution "Fixed"