Implement T77959: Never duplicate linked data during deep-copy.

Note that this behavior is enforced on user level for now, but on code
side it is controlled with a flag, which should make it easy to refine
that behavior if needed.

Only exception is when we duplicate a linked ID directly (then we assume
user wants a local deep-copy of that linked data, and we always also
duplicate linked sub-data-blocks).

Note that this commit also slightly refactor the handling of actions of
animdata, by simplifying `BKE_animdata_copy_id_action()` and adding an
explicit new `BKE_animdata_duplicate_id_action()` to be used during ID
duplication (deep copy).

This also allows us to get rid of the special case for liboverrides.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/blenkernel/BKE_object.h b/source/blender/blenkernel/BKE_object.h
index d830a35dda0..f2a022c84a3 100644
--- a/source/blender/blenkernel/BKE_object.h
+++ b/source/blender/blenkernel/BKE_object.h
@@ -139,7 +139,7 @@ bool BKE_object_obdata_is_libdata(const struct Object *ob);
 
 struct Object *BKE_object_duplicate(struct Main *bmain,
                                     struct Object *ob,
-                                    const uint dupflag,
+                                    uint dupflag,
                                     const uint duplicate_options);
 
 void BKE_object_obdata_size_init(struct Object *ob, const float scale);