Sybren A. Stüvel
2601501fce
Sometimes multiple calls to `bpy.data.orphans_purge()` are needed to delete all orphans, because a call can turn previously-used datablocks into orphans. Returning the number of deleted datablocks makes it possible to keep looping until nothing can be deleted any more. This patch keeps track of deletions in `id_delete()` so that it can be returned up the call stack. Reviewed By: mont29 Differential Revision: https://developer.blender.org/D9918