There is no (good) reason to use 'refine' internal code to create RNA
pointers of IDs, these always ignore any 'ID inheritance', since by
definition the 'owner ID' info of an ID PointerRNA is always that ID.
Similarily, do not call RNA pointers creation code with null data, this
will simply return `PointerRNA_NULL`, can as well return that directly.
Pull Request: https://projects.blender.org/blender/blender/pulls/133668
fe9478ff0b