$ git clone -n https://src.fedoraproject.org/rpms/freetds.git /var/lib/mock/f45-build-9260-400/root/chroot_tmpdir/scmroot/freetds
Cloning into '/var/lib/mock/f45-build-9260-400/root/chroot_tmpdir/scmroot/freetds'...
$ git fetch origin e1705a147ff8ea8a26afe612df347cf9109b6008:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freetds
 * [new ref]         e1705a147ff8ea8a26afe612df347cf9109b6008 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1705a1 [bugfix] Fix FTBFS with nettle 4.0: 'sha1_digest()' also lost length parameter