Fixes#21364.
`self.Type` should be set in `__init__` and `loads`, and not in `onDocumentRestored`.
Additionally:
fixed mistake in `loads` in ifc_objects.py.
Fixes#19577
Apparently the ViewObject can be updated before the Shape of the objects has been changed. To catch this the number of edges is checked in the `onChanged` method of the ViewObject.
There was an additional index error if the Limit property was not zero.