Blender Git Commit Log

Fix broken logic in lib_query that could lead to NULL id_owner pointer.

Issue revealed by own recent cleanup in rB8820ab4, and moticed by
@brecht, thanks.

Note that am not 100% sure whether we should allow call on lib_query
without a proper valid owner_id, for embedded data-blocks. But this can
be investifated later, so far things have been working like that.