$ git clone -n https://src.fedoraproject.org/rpms/freeciv.git /var/lib/mock/f39-build-1850223-42234/root/chroot_tmpdir/scmroot/freeciv
Cloning into '/var/lib/mock/f39-build-1850223-42234/root/chroot_tmpdir/scmroot/freeciv'...
$ git fetch origin 57e7808046254b2392aba0f3f5fa633986d893df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freeciv
 * [new ref]         57e7808046254b2392aba0f3f5fa633986d893df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57e7808 3.0.9