$ git clone -n https://src.fedoraproject.org/rpms/ocaml-expat.git /var/lib/mock/f45-build-20523-571/root/chroot_tmpdir/scmroot/ocaml-expat
Cloning into '/var/lib/mock/f45-build-20523-571/root/chroot_tmpdir/scmroot/ocaml-expat'...
$ git fetch origin 08566f099244e10482f7068b684300443e82c141:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-expat
 * [new ref]         08566f099244e10482f7068b684300443e82c141 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 08566f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild