$ git clone -n https://src.fedoraproject.org/rpms/ocaml-zmq.git /var/lib/mock/f39-build-1845997-42107/root/chroot_tmpdir/scmroot/ocaml-zmq
Cloning into '/var/lib/mock/f39-build-1845997-42107/root/chroot_tmpdir/scmroot/ocaml-zmq'...
$ git fetch origin d54b934b4a6f868419bfae9f3db29b6c5c8e883a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-zmq
 * [new ref]         d54b934b4a6f868419bfae9f3db29b6c5c8e883a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d54b934 Bump up sleep values again, still needed on s390x