$ git clone -n https://src.fedoraproject.org/rpms/ocaml-parsexp.git /var/lib/mock/f45-build-20635-572/root/chroot_tmpdir/scmroot/ocaml-parsexp
Cloning into '/var/lib/mock/f45-build-20635-572/root/chroot_tmpdir/scmroot/ocaml-parsexp'...
$ git fetch origin e53f56f5aec0b6eaa0589acd615b07724dc915ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-parsexp
 * [new ref]         e53f56f5aec0b6eaa0589acd615b07724dc915ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e53f56f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild