Comment 2 for bug 862009

StacktraceTop:
 g_type_check_instance_is_a (type_instance=<optimized out>, iface_type=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gtype.c:3952
 dbusmenu_menuitem_get_children (mi=0x1a9ea60) at /build/buildd/libdbusmenu-0.4.94/./libdbusmenu-glib/menuitem.c:583
 find_id_helper (in_find_id=<optimized out>, in_mi=0x1a9ea60) at /build/buildd/libdbusmenu-0.4.94/./libdbusmenu-glib/menuitem.c:950
 find_id_helper (in_mi=0x1a9ea60, in_find_id=<optimized out>) at /build/buildd/libdbusmenu-0.4.94/./libdbusmenu-glib/menuitem.c:939
 g_list_foreach (list=<optimized out>, func=0x7f843c688970 <find_id_helper>, user_data=0x7fff2dd26170) at /build/buildd/glib2.0-2.30.0/./glib/glist.c:938