Fix T80426: Crash when deleting custom orientation

Indices referencing other orientations were not being updated,

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index 3098aa79b88..00218b1be51 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -2424,6 +2424,10 @@ void BKE_scene_transform_orientation_remove(Scene *scene, TransformOrientation *
       orient_slot->type = V3D_ORIENT_GLOBAL;
       orient_slot->index_custom = -1;
     }
+    else if (orient_slot->index_custom > orientation_index) {
+      BLI_assert(orient_slot->type == V3D_ORIENT_CUSTOM);
+      orient_slot->index_custom--;
+    }
   }
 
   BLI_freelinkN(&scene->transform_spaces, orientation);