$ git clone -n https://src.fedoraproject.org/rpms/ormolu.git /var/lib/mock/f41-build-839613-160255/root/chroot_tmpdir/scmroot/ormolu
Cloning into '/var/lib/mock/f41-build-839613-160255/root/chroot_tmpdir/scmroot/ormolu'...
$ git fetch origin eb0db68ef0bdc533b09160d8414a8961b6617780:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ormolu
 * [new ref]         eb0db68ef0bdc533b09160d8414a8961b6617780 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb0db68 update to 0.7.2.0