Fixed checking for closing of disconnect window on button

source/ubl-settings-system.c

@@ -619,6 +619,7 @@ void on_domain_opened(GtkWidget *self, main_window *widgets){
     yon_dictionary_add_or_create_if_exists_with_data(dict,"widgets",widgets);
     yon_dictionary_add_or_create_if_exists_with_data(dict,"window",window);
     g_signal_connect(G_OBJECT(window->SaveButton),"clicked",G_CALLBACK(on_domain_disconnect),dict);
+        g_signal_connect(G_OBJECT(window->Window),"destroy",G_CALLBACK(on_check_domain_connected),widgets);
 
     gtk_widget_show(window->Window);
     } else {