Comment 2 for bug 1154155

StacktraceTop:
 pspec_list_remove_overridden_and_redirected (n_p=0xbf97189c, owner_type=157742136, ht=0x963e118, plist=0x21) at /build/buildd/glib2.0-2.35.8/./gobject/gparam.c:1171
 g_param_spec_pool_list (pool=0x9645fe0, owner_type=owner_type@entry=157742136, n_pspecs_p=n_pspecs_p@entry=0xbf97189c) at /build/buildd/glib2.0-2.35.8/./gobject/gparam.c:1297
 object_interface_check_properties (func_data=0x0, g_iface=g_iface@entry=0x967b988) at /build/buildd/glib2.0-2.35.8/./gobject/gobject.c:1383
 type_iface_vtable_iface_init_Wm (iface=<optimized out>, node=0x967b988, node@entry=0x9654ed8) at /build/buildd/glib2.0-2.35.8/./gobject/gtype.c:2077
 type_class_init_Wm (pclass=0x9645f98, node=0x9654ed8) at /build/buildd/glib2.0-2.35.8/./gobject/gtype.c:2265