Comment 2 for bug 886807

StacktraceTop:
 gtk_box_pack (box=0x0, child=0x3066130, expand=0, fill=0, padding=0, pack_type=GTK_PACK_START) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkbox.c:973
 app_chooser_online_get_default_ready_cb (source=<optimized out>, res=0x7fec64217b60, user_data=0x2f4a010) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkappchooserdialog.c:175
 g_simple_async_result_complete (simple=0x7fec64217b60) at /build/buildd/glib2.0-2.30.0/./gio/gsimpleasyncresult.c:749
 pk_proxy_created_cb (source=<optimized out>, result=<optimized out>, user_data=0x2c480a0) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkappchooseronlinepk.c:187
 g_simple_async_result_complete (simple=0x3089800) at /build/buildd/glib2.0-2.30.0/./gio/gsimpleasyncresult.c:749