added use of db events flow control

src/rsrv/caservertask.c

@@ -264,6 +264,12 @@ LOCAL int terminate_one_client(struct client *client)
 			NULL);
 	}
 
+	/*
+	 * exit flow control so the event system will
+	 * shutdown correctly
+	 */
+	db_event_flow_ctrl_mode_off(client->evuser);
+
 	/*
 	 * Server task deleted first since close() is not reentrant
 	 */