*** a/src/backend/commands/async.c
--- b/src/backend/commands/async.c
***************
*** 2092,2098 **** ProcessIncomingNotify(void)
--- 2092,2101 ----
  
  	/* Do nothing if we aren't actively listening */
  	if (listenChannels == NIL)
+ 	{
+ 		notifyInterruptOccurred = 0;
  		return;
+ 	}
  
  	/* Must prevent catchup interrupt while I am running */
  	catchup_enabled = DisableCatchupInterrupt();