Description of problem:
Just upgraded my system with the latest updates and found
that 'su - joeuser' from root leaves the XAUTHORITY variable
set to /root/.Xauthority.
So commands like:
xauth extract - $DISPLAY | su -l --command="unset XAUTHORITY ; xauth merge -"
need to explicitly unset XAUTHORITY
Version-Release number of selected component (if applicable):
Steps to Reproduce: