Fix for cvs tag issue

[Neal Becker <ndbecker2 gmail com>]

I know I encountered this once before, but forgot how to fix.

cvs update -d -P
(creates F-9 dir)
cd F-9
make tag
cvs tag  -c Cython-0_9_6_13_1-3_fc9
ERROR: The tag Cython-0_9_6_13_1-3_fc9 is already applied on a different
branch

That tag is already on devel branch.

What is the process to fix this?