$ git clone -n https://src.fedoraproject.org/rpms/haruna.git /var/lib/mock/f45-build-13316-449/root/chroot_tmpdir/scmroot/haruna
Cloning into '/var/lib/mock/f45-build-13316-449/root/chroot_tmpdir/scmroot/haruna'...
$ git fetch origin 9ac39357b23328f1c78119c138b1ca0ccac944d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/haruna
 * [new ref]         9ac39357b23328f1c78119c138b1ca0ccac944d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ac3935 Rebuilt for FFmpeg 9