menu: Don't leak check menu items

Pointed out in
https://bugzilla.gnome.org/show_bug.cgi?id=774686

diff --git a/gtk/gtkmenu.c b/gtk/gtkmenu.c
index 7839098371e61865f876c1d198b71ffed98f6b10..514dd676ad65f7dfd555ef558bcc92e062f58983 100644 (file)
--- a/gtk/gtkmenu.c
+++ b/gtk/gtkmenu.c
@@ -3056,6 +3056,8 @@ static void gtk_menu_measure (GtkWidget      *widget,
           max_toggle_size = indicator_width;
 
           gtk_widget_destroy (menu_item);
+          g_object_ref_sink (menu_item);
+          g_object_unref (menu_item);
         }
 
       min_width += 2 * max_toggle_size + max_accel_width;