=== modified file 'src/indicator-appmenu.c'
--- src/indicator-appmenu.c	2015-03-02 14:47:00 +0000
+++ src/indicator-appmenu.c	2015-04-29 22:35:29 +0000
@@ -1086,7 +1086,12 @@
 	IndicatorAppmenu * appmenu = INDICATOR_APPMENU(user_data);
 
 	if (window != NULL && appmenu->mode == MODE_UNITY_ALL_MENUS) {
-		ensure_menus(appmenu, window);
+		WindowMenu * menus = ensure_menus(appmenu, window);
+		// before the introduction of MODEs, the following used to be triggered by switch_default_app
+		if (appmenu->default_app != menus && menus != NULL) {
+			appmenu->default_app = menus;
+			connect_to_menu_signals(appmenu, appmenu->default_app);
+		}
 		return;
 	}