Fix T81345: Part one: Missing handling of ID pointers from EditBone IDProperties.

So far data management code would simply fully ignore potential ID
pointers in custom properties of edit bones (which are a copy of those
from regular `Bone`). This would lead to all kind of issues, among which
refcounting inconsistencies, missing clearing of data uppon deletion,
etc.

1 files changed, 12 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/armature.c b/source/blender/blenkernel/intern/armature.c
index 49ca25aca29..af9ce7c34ac 100644
--- a/source/blender/blenkernel/intern/armature.c
+++ b/source/blender/blenkernel/intern/armature.c
@@ -160,12 +160,24 @@ static void armature_foreach_id_bone(Bone *bone, LibraryForeachIDData *data)
   }
 }
 
+static void armature_foreach_id_editbone(EditBone *edit_bone, LibraryForeachIDData *data)
+{
+  IDP_foreach_property(
+      edit_bone->prop, IDP_TYPE_FILTER_ID, BKE_lib_query_idpropertiesForeachIDLink_callback, data);
+}
+
 static void armature_foreach_id(ID *id, LibraryForeachIDData *data)
 {
   bArmature *arm = (bArmature *)id;
   LISTBASE_FOREACH (Bone *, bone, &arm->bonebase) {
     armature_foreach_id_bone(bone, data);
   }
+
+  if (arm->edbo != NULL) {
+    LISTBASE_FOREACH (EditBone *, edit_bone, arm->edbo) {
+      armature_foreach_id_editbone(edit_bone, data);
+    }
+  }
 }
 
 static void write_bone(BlendWriter *writer, Bone *bone)