Opening window menu of maximized window causes gtk-window-decorator to SEGV

[Ben Gamari]

Maximizing a window and pressing ALT-Space to open the window menu causes gtk-window-decorator to segfault with the following backtrace,

    #0 0x0000000000411609 in meta_get_button_position ()
    #1 0x000000000041533b in ?? ()
    #2 0x00007f996f93c024 in gtk_menu_position (menu=0x1744000, set_scroll_offset=1) at /build/buildd/gtk+2.0-2.24.10/gtk/gtkmenu.c:4255
    #3 0x00007f996f93e54b in IA__gtk_menu_popup (menu=0x1744000, parent_menu_shell=0x0, parent_menu_item=0x0, func=0x415280, data=0x1713900, button=0, activate_time=2027145)
        at /build/buildd/gtk+2.0-2.24.10/gtk/gtkmenu.c:1593
    #4 0x0000000000415542 in action_menu_map ()
    #5 0x000000000041476e in event_filter_func ()
    #6 0x00007f996f5a4e26 in gdk_event_apply_filters (filters=<optimized out>, event=<optimized out>, xevent=<optimized out>) at /build/buildd/gtk+2.0-2.24.10/gdk/x11/gdkevents-x11.c:356
    #7 gdk_event_translate (display=0x15d5030, event=0x16f4c90, xevent=0x7fff06c88640, return_exposes=0) at /build/buildd/gtk+2.0-2.24.10/gdk/x11/gdkevents-x11.c:927
    #8 0x00007f996f5a6bd6 in _gdk_events_queue (display=0x15d5030) at /build/buildd/gtk+2.0-2.24.10/gdk/x11/gdkevents-x11.c:2310
    #9 0x00007f996f5a6c7e in gdk_event_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+2.0-2.24.10/gdk/x11/gdkevents-x11.c:2371
    #10 0x00007f996e4f9d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
    #11 0x00007f996e4fa0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
    #12 0x00007f996e4fa49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
    #13 0x00007f996f9312f7 in IA__gtk_main () at /build/buildd/gtk+2.0-2.24.10/gtk/gtkmain.c:1329
    #14 0x000000000040af84 in main ()

This is with,
    ii compiz 1:0.9.7.8-0ubuntu1.1 OpenGL window and compositing manager