$ git clone -n https://src.fedoraproject.org/rpms/ocaml-cppo.git /var/lib/mock/f40-build-783931-133234/root/chroot_tmpdir/scmroot/ocaml-cppo
Cloning into '/var/lib/mock/f40-build-783931-133234/root/chroot_tmpdir/scmroot/ocaml-cppo'...
$ git fetch origin a4898bb1fd13ef846960f04a4c92655e33182bc4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-cppo
 * [new ref]         a4898bb1fd13ef846960f04a4c92655e33182bc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4898bb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild