8b7293eb41
Inconsistencies in update/tagging code between different code doing the same 'Clear. liboverride operation lead to crashes in some cases. Unify deg tagging and WM notifiers accross the three editor-level codepaths performing the common Make/Reset/Clear operations. Preserve if possible the active object accross Clear operation. Several cleanup/rename/re-arangement of code to make it more consistent.