--- \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);
 				}
 			}
 		}