EditMesh: Improve AutoMerge with Split Edges & Faces

Previously, compared to `Auto Merge` without `Split Edges & Faces`,
`Auto Merge` with this option ignored duplicates between selected
vertices. It only considered duplicates between selected vertices and
unselected vertices.

This is a regress and not a progress.

This commit implements this behavior, so this option matches the other
`Auto Merge`.

1 files changed, 3 insertions, 3 deletions

diff --git a/source/blender/editors/include/ED_mesh.h b/source/blender/editors/include/ED_mesh.h
index 90ad90058e7..b28f645e982 100644
--- a/source/blender/editors/include/ED_mesh.h
+++ b/source/blender/editors/include/ED_mesh.h
@@ -144,9 +144,9 @@ bool BMBVH_EdgeVisible(struct BMBVHTree *tree,
 /* editmesh_automerge.c */
 void EDBM_automerge(struct Object *ob, bool update, const char hflag, const float dist);
 void EDBM_automerge_and_split(struct Object *ob,
-                              bool split_edges,
-                              bool split_faces,
-                              bool update,
+                              const bool split_edges,
+                              const bool split_faces,
+                              const bool update,
                               const char hflag,
                               const float dist);