$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-derivers.git /var/lib/mock/f40-build-2300005-56684/root/chroot_tmpdir/scmroot/ocaml-ppx-derivers
Cloning into '/var/lib/mock/f40-build-2300005-56684/root/chroot_tmpdir/scmroot/ocaml-ppx-derivers'...
$ git fetch origin ba2b4a97dd501887e26de22af207b823493c83bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-derivers
 * [new ref]         ba2b4a97dd501887e26de22af207b823493c83bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba2b4a9 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild