Created attachment 3738 session saving file that makes XFCE login fail when I check the checkbox "save session for next connexions" in the logout dialog box, the next time I login, the session fails to start : no xfwm4, short keys like Alt+F2 not working... I have to remove by hand the file /home/denis/.cache/sessions/xfce4-session-denis-portable:0 , to be able to login properly again. this is with xfce4-session 4.8.1 on a Mageia 1 linux system. attached is the xfce4-session-denis-portable:0 that seems to make xfce4-session fail.
That's probably the same cause as Bug 5379.
I tested it with xfce4-session 4.10.0 on Opensuse 12.2 : now it works ! So I mark this bug as fixed.