Blender Git Commit Log

Fix #35704: Simplify on scene with dupli recursion crashes

Couple of issues here:

- User shouldn't be able to run into dupligroup recursion.
It was checking already when setting a group for dupli.
Added check to operator which adds object to group.

- It's still possible files with recursion are hanging around,
so made simplify function robust to such kind of crap.