Comment 2 for bug 870708

StacktraceTop:
 spaces_instead_of_tabs_changed (object=<optimized out>, pspec=<optimized out>, window=<optimized out>) at gedit-window.c:2526
 g_closure_invoke (closure=0x1d64970, return_value=0x0, n_param_values=2, param_values=0x1fa2800, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:774
 signal_emit_unlocked_R (node=<optimized out>, detail=2726, instance=0x106c2e0, emission_return=0x0, instance_and_params=0x1fa2800) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3272
 g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3003
 g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3060