$ git clone -n https://src.fedoraproject.org/rpms/flacon.git /var/lib/mock/f45-build-8999-397/root/chroot_tmpdir/scmroot/flacon
Cloning into '/var/lib/mock/f45-build-8999-397/root/chroot_tmpdir/scmroot/flacon'...
$ git fetch origin bdb56021440135af10a9dc02fa9371c34531017a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flacon
 * [new ref]         bdb56021440135af10a9dc02fa9371c34531017a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bdb5602 Update to 13.0.2.