xfwm4 4.3 (svn) r20608 crashes imediatelly with a segfault (see attached backtrace) when mplayer is run on a video file. Happens always; steps to reproduce are simply run xfwm4 and then run mplayer with a video file as argument. Does not seem related to the compositor, as I don't have it enabled. Output of `xfwm4 --version':

        This is xfwm4 version 4.3.0 (revision 20608) for Xfce 4.3.0
        Released under the terms of the GNU General Public License.
        Compiled against GTK+-2.8.13, using GTK+-2.8.13.

        Build configuration and supported features:
        - Startup notification support:                 Yes
        - Render support:                               Yes
        - Xrandr support:                               Yes
        - Embedded compositor:                          No