$ git clone -n https://src.fedoraproject.org/rpms/ocaml-logs.git /var/lib/mock/f45-build-20601-572/root/chroot_tmpdir/scmroot/ocaml-logs
Cloning into '/var/lib/mock/f45-build-20601-572/root/chroot_tmpdir/scmroot/ocaml-logs'...
$ git fetch origin d7907ceb13128d27fb41505cfc43a2c95222e246:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-logs
 * [new ref]         d7907ceb13128d27fb41505cfc43a2c95222e246 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7907ce OCaml 5.5.1 rebuild