Comment 2 for bug 1498759

StacktraceTop:
 gtk_rc_clear_realized_style (key=0x894a360, value=0x88eb940, data=0x0) at /build/gtk+2.0-asG5kd/gtk+2.0-2.24.28/gtk/gtkrc.c:1665
 g_hash_table_foreach (hash_table=0x88d90a8, func=0xb737fa30 <gtk_rc_clear_realized_style>, user_data=0x0) at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./glib/ghash.c:1607
 IA__gtk_rc_reset_styles (settings=0x889a080) at /build/gtk+2.0-asG5kd/gtk+2.0-2.24.28/gtk/gtkrc.c:1711
 gtk_settings_notify (object=0x889a080, pspec=0x88aae68) at /build/gtk+2.0-asG5kd/gtk+2.0-2.24.28/gtk/gtksettings.c:1430
 g_cclosure_marshal_VOID__PARAM (closure=0x8870c78, return_value=0x0, n_param_values=2, param_values=0xbfce27d0, invocation_hint=0xbfce2774, marshal_data=0xb73a3090 <gtk_settings_notify>) at /build/glib2.0-9TzlcR/glib2.0-2.45.8/./gobject/gmarshal.c:1832