Correct exit when no disk is selected and we don't wish to continue (#1049)

archinstall/lib/menu/global_menu.py

@@ -99,6 +99,7 @@ class GlobalMenu(GeneralMenu):
 			Selector(
 				_('Specify superuser account'),
 				lambda preset: self._create_superuser_account(),
+				default={},
 				exec_func=lambda n,v:self._users_resynch(),
 				dependencies_not=['!root-password'],
 				display_func=lambda x: self._display_superusers())
@@ -254,7 +255,8 @@ class GlobalMenu(GeneralMenu):
 			choice = Menu(prompt, ['yes', 'no'], default_option='yes').run()
 
 			if choice == 'no':
-				return self._select_harddrives(old_harddrives)
+				exit(1)
+
 
 		return harddrives