[PATCH] Tiny optmization or a bug?

Hi,
Hi,
Maybe this is a real bug.

The assignment has no effect, or forget dereferencing it?

Best regards.
Ranier Vilela

--- \dll\postgresql-12.0\a\backend\optimizer\plan\initsplan.c    Mon Sep 30 17:06:55 2019
+++ initsplan.c    Fri Nov 22 19:48:42 2019
@@ -1718,7 +1718,7 @@
                     relids =
                         get_relids_in_jointree((Node *) root->parse->jointree,
                                                false);
-                    qualscope = bms_copy(relids);
+                    bms_copy(relids);
                 }
             }
         }