Cleanup: typo in selection check

In practice this is harmless as in most cases checking selected
vertices is enough, however as the intention is to check all 3 elements
it's best to do so.

source/blender/editors/mesh/editmesh_tools.c

@@ -936,7 +936,7 @@ static int edbm_add_edge_face_exec(bContext *C, wmOperator *op)
     Object *obedit = objects[ob_index];
     BMEditMesh *em = BKE_editmesh_from_object(obedit);
 
-    if ((em->bm->totvertsel == 0) && (em->bm->totedgesel == 0) && (em->bm->totvertsel == 0)) {
+    if ((em->bm->totvertsel == 0) && (em->bm->totedgesel == 0) && (em->bm->totfacesel == 0)) {
       continue;
     }