make tag
cvs tag  -c wmctrl-1_07-2_fc5
For more information on using the Fedora source code repositories, 
please visit http://fedoraproject.org/wiki/UsingCvs
ERROR: The tag wmctrl-1_07-2_fc5 is already applied on a different branch
ERROR: You can not forcibly move tags between branches
wmctrl-1_07-2_fc5:devel:errr:1160198167
wmctrl-1_07-2_fc6:devel:errr:1160253578
cvs tag: Pre-tag check failed
cvs [tag aborted]: correct the above errors first!
make: *** [tag] Error 1