Comment 2 for bug 817459

StacktraceTop:
 notify_cb (obj=0x83073f8, pspec=0x826a000) at /build/buildd/gtk+3.0-3.1.10/./gtk/a11y/gtkwidgetaccessible.c:65
 g_cclosure_marshal_VOID__PARAM (closure=0x8394b30, return_value=0x0, n_param_values=2, param_values=0x845a4c8, invocation_hint=0xbff212b0, marshal_data=0x0) at /build/buildd/glib2.0-2.29.14/./gobject/gmarshal.c:539
 g_closure_invoke (closure=0x8394b30, return_value=0x0, n_param_values=2, param_values=0x845a4c8, invocation_hint=0xbff212b0) at /build/buildd/glib2.0-2.29.14/./gobject/gclosure.c:773
 signal_emit_unlocked_R (node=0x825fce8, detail=96, instance=0x83073f8, emission_return=0x0, instance_and_params=0x845a4c8) at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3271
 g_signal_emit_valist (instance=0x83073f8, signal_id=1, detail=96, var_args=0xbff21460 "\300I\243\266\002") at /build/buildd/glib2.0-2.29.14/./gobject/gsignal.c:3002