99c5c8befc
All objects were being parented to a single instance of each parent object, instead of their respective instances, when using dupliverts or dupligroups. Behavior was caused by the `persistent_id[0]` (vertex/face id) being ignored when computing `parent_gh` hash, which caused all instances to have the same hash, and thus only the first one was included. Reviewed By: mont29 Differential Revision: https://developer.blender.org/D2370