Question about tagging

[Rick L. Vinyard, Jr.]

I'm trying to build cairomm 1.8.4 in devel, but the tags that I get are
dist-f12, and when I try and actually do the build I get an error saying:

/usr/bin/koji  build  dist-f12
'cvs://cvs.fedoraproject.org/cvs/pkgs?rpms/cairomm/devel#cairomm-1_8_4-1_fc12'
Usage: koji build [options] target URL
(Specify the --help global option for a list of other help options)

koji: error: Destination tag dist-f12 is locked
make: *** [koji] Error 1


Shouldn't I be getting f13 tags with "make tag"?