- if a group has one or more objects in it, it gets a refcount of 1 on load (unchanged from before) - dupli-groups, and materials no longer add/remove a reference. - now groups are only freed when they contain no objects or when manually unlinked.
- if a group has one or more objects in it, it gets a refcount of 1 on load (unchanged from before) - dupli-groups, and materials no longer add/remove a reference. - now groups are only freed when they contain no objects or when manually unlinked.