$ git clone -n https://src.fedoraproject.org/rpms/audiocd-kio.git /var/lib/mock/f42-build-side-1-3568044-46743/root/chroot_tmpdir/scmroot/audiocd-kio
Cloning into '/var/lib/mock/f42-build-side-1-3568044-46743/root/chroot_tmpdir/scmroot/audiocd-kio'...
$ git fetch origin 28199e6a1444ac9430521b6c4ece6e7d4bea09aa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/audiocd-kio
 * [new ref]         28199e6a1444ac9430521b6c4ece6e7d4bea09aa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28199e6 25.04.2