Comment 2 for bug 1048098

StacktraceTop:
 refresh_ui (panel=0x7f2e90419620) at cc-network-panel.c:2257
 _g_closure_invoke_va (closure=0x7f2e914cf150, return_value=0x0, instance=0x7f2e914cb590, args=0x7fffe74a32f8, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.33.12/./gobject/gclosure.c:840
 g_signal_emit_valist (instance=0x7f2e914cb590, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffe74a32f8) at /build/buildd/glib2.0-2.33.12/./gobject/gsignal.c:3211
 g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.33.12/./gobject/gsignal.c:3356
 g_closure_invoke (closure=0x7f2e914f6060, return_value=0x0, n_param_values=4, param_values=0x7fffe74a35b0, invocation_hint=0x7fffe74a3550) at /build/buildd/glib2.0-2.33.12/./gobject/gclosure.c:777