'Wait' now runs the deferred routines even if there is no pending GUI event.

[GB.GTK]
* BUG: 'Wait' now runs the deferred routines even if there is no pending GUI event.

[GB.GTK3]
* BUG: 'Wait' now runs the deferred routines even if there is no pending GUI event.

gb.gtk/src/main.cpp

@@ -594,6 +594,7 @@ static void hook_wait(int duration)
 	else if (duration == -1)
 	{
 		bool d = gApplication::disableInputEvents(true);
+		MAIN_do_iteration(true); // To process deferred routines
 		while (gApplication::eventsPending())
 			MAIN_do_iteration(false);
 		gApplication::disableInputEvents(d);

gb.gtk3/src/main.cpp

@@ -608,6 +608,7 @@ static void hook_wait(int duration)
 	else if (duration == -1)
 	{
 		bool d = gApplication::disableInputEvents(true);
+		MAIN_do_iteration(true); // To process deferred routines
 		while (gApplication::eventsPending())
 			MAIN_do_iteration(false);
 		gApplication::disableInputEvents(d);