Fix handling of B-Bone custom handle references in Edit mode undo.

Correct a couple of places that should process the handle pointers.

2 files changed, 14 insertions, 1 deletions

diff --git a/source/blender/editors/armature/armature_relations.c b/source/blender/editors/armature/armature_relations.c
index 0e95b6c3467..28bab00e665 100644
--- a/source/blender/editors/armature/armature_relations.c
+++ b/source/blender/editors/armature/armature_relations.c
@@ -549,8 +549,15 @@ static void separate_armature_bones(Main *bmain, Object *ob, short sel)
 
 			/* clear the pchan->parent var of any pchan that had this as its parent */
 			for (pchn = ob->pose->chanbase.first; pchn; pchn = pchn->next) {
-				if (pchn->parent == pchan)
+				if (pchn->parent == pchan) {
 					pchn->parent = NULL;
+				}
+				if (pchn->bbone_next == pchan) {
+					pchn->bbone_next = NULL;
+				}
+				if (pchn->bbone_prev == pchan) {
+					pchn->bbone_prev = NULL;
+				}
 			}
 
 			/* free any of the extra-data this pchan might have */
diff --git a/source/blender/editors/armature/armature_utils.c b/source/blender/editors/armature/armature_utils.c
index 339f0306779..53b07c59973 100644
--- a/source/blender/editors/armature/armature_utils.c
+++ b/source/blender/editors/armature/armature_utils.c
@@ -816,6 +816,12 @@ void ED_armature_ebone_listbase_copy(ListBase *lb_dst, ListBase *lb_src)
 		if (ebone_dst->parent) {
 			ebone_dst->parent = ebone_dst->parent->temp.ebone;
 		}
+		if (ebone_dst->bbone_next) {
+			ebone_dst->bbone_next = ebone_dst->bbone_next->temp.ebone;
+		}
+		if (ebone_dst->bbone_prev) {
+			ebone_dst->bbone_prev = ebone_dst->bbone_prev->temp.ebone;
+		}
 	}
 }