$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ocplib-endian.git /var/lib/mock/f45-build-20607-572/root/chroot_tmpdir/scmroot/ocaml-ocplib-endian
Cloning into '/var/lib/mock/f45-build-20607-572/root/chroot_tmpdir/scmroot/ocaml-ocplib-endian'...
$ git fetch origin d241fea3538bd040328f89365f9b16d93d3d90e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ocplib-endian
 * [new ref]         d241fea3538bd040328f89365f9b16d93d3d90e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d241fea Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild