Blender Git Loki

Add an exception/hack to new BKE_id_expand_local(), to ignore actions datablock in its usercount handling.

Reason is, typically those actions datablock usercounts have already been adjusted in BKE_animdata_copy()
(called by generic iddata copy function).

Think this needs to be reworked a bit too, there are way too much ways to copy animdata currently,
it's rather confusing. But not the goal here, so for now we'll live with the hack!