$ git clone -n https://src.fedoraproject.org/rpms/ocaml-autoconf.git /var/lib/mock/f45-build-20453-570/root/chroot_tmpdir/scmroot/ocaml-autoconf
Cloning into '/var/lib/mock/f45-build-20453-570/root/chroot_tmpdir/scmroot/ocaml-autoconf'...
$ git fetch origin e3aedb4c5f1c2b200e8bd0d04b0fc1c6ffa6bfd3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-autoconf
 * [new ref]         e3aedb4c5f1c2b200e8bd0d04b0fc1c6ffa6bfd3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3aedb4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild