Please remove the Xsession script from kdebase, as the script is obsoleted by xinitrc and may end up causing confusion between users and/or developers trying to debug issues which have already been fixed in the xinitrc package. Filed this report as per bug comment below: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=116164#c6
it's just a workaround for old xinitrc ;-) yes, it should be removed now since the new xinitrc has included the fix. Thanks it's fixed now in kdebase-3.2.1-1.7