$ git clone -n https://src.fedoraproject.org/rpms/python-ckzg.git /var/lib/mock/f42-build-side-1-3502157-45977/root/chroot_tmpdir/scmroot/python-ckzg
Cloning into '/var/lib/mock/f42-build-side-1-3502157-45977/root/chroot_tmpdir/scmroot/python-ckzg'...
$ git fetch origin 67f2b6eadbb03ddcd0e37b5546eea6f505953346:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ckzg
 * [new ref]         67f2b6eadbb03ddcd0e37b5546eea6f505953346 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 67f2b6e ckzg ver. 2.1.1