As create_object handler is copied from the parent class, we should ignore situations when we are trying to
extend a class that already has necessary create_object handler installed by Z-engine.
Only internal classes should be ignored as we can't allocate memory for them and to perform initialization
As create_object handler is copied from the parent class, we should ignore situations when we are trying to
extend a class that already has necessary create_object handler installed by Z-engine. Only internal classes should be ignored as we can't allocate memory for them and to perform initialization