LibOverride: Abstract a bit handling of local items of RNA collections.

RNA collections that support insertion of new items in liboverride
data-block need a special way to distiguish between locale and
orig-from-linked items (since some operations are allowed on the forer,
but no the latter).

In future we want a proper solution to abstract that at the
`BKE_lib_override` level, but for now we need to add some code for each
case.

Note that this commit also fixes a few potential issues with GPencil
modifiers, and constraints, regarding their handling of local overrides.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_modifier.h b/source/blender/blenkernel/BKE_modifier.h
index b0a7d89e3d8..37f566d6f8e 100644
--- a/source/blender/blenkernel/BKE_modifier.h
+++ b/source/blender/blenkernel/BKE_modifier.h
@@ -431,6 +431,7 @@ bool BKE_modifier_is_non_geometrical(ModifierData *md);
 bool BKE_modifier_is_enabled(const struct Scene *scene,
                              struct ModifierData *md,
                              int required_mode);
+bool BKE_modifier_is_local_in_liboverride(const struct Object *ob, const struct ModifierData *md);
 void BKE_modifier_set_error(const struct Object *ob,
                             struct ModifierData *md,
                             const char *format,