$ git clone -n http://git.inferitos.ru/rpms/libcaca /var/lib/mock/inferit-9-extras-build-23059-38183/root/chroot_tmpdir/scmroot/libcaca
Cloning into '/var/lib/mock/inferit-9-extras-build-23059-38183/root/chroot_tmpdir/scmroot/libcaca'...
$ git fetch origin changed/i9/libcaca-0.99-0.99-0.69.beta20:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/libcaca
 * [new tag]         changed/i9/libcaca-0.99-0.99-0.69.beta20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13addef Update to 0.99-0.69.beta20