$ git clone -n https://src.fedoraproject.org/rpms/ocaml-sexplib0.git /var/lib/mock/f45-build-20713-573/root/chroot_tmpdir/scmroot/ocaml-sexplib0
Cloning into '/var/lib/mock/f45-build-20713-573/root/chroot_tmpdir/scmroot/ocaml-sexplib0'...
$ git fetch origin 7b0c9bca1ae608ee9267003d3e11cf81bf76bc83:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-sexplib0
 * [new ref]         7b0c9bca1ae608ee9267003d3e11cf81bf76bc83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b0c9bc Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild