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?