BPyObject.py - function for getting an objects armature, look at both parent and modifier. editmesh_add.c and BPyAddMesh.py - check for multires filesel.c, Append/Link had a bug where files linked in, didnt have the LIB_APPEND_TAG unset, and appending these into a new blend file would link instead. BKE_library.h, library.c - utility functions for flagging listbases flag_all_listbases_ids and and flag_listbase_ids