2a94a99605
Library overrides crashed with on trying to access the interface root panel. The root panel should not be exposed through RNA, but also accessing its `position` property should be allowed. Several fixes here: - Fix `position` property getter when the item has no parent panel (i.e. the root panel). - Avoid infinite loops in the greedy override comparison: exclude the loopback `parent` property. - Don't return the root panel via the `parent` property in the first place, just return nullptr. Pull Request: https://projects.blender.org/blender/blender/pulls/111755