$ git clone -n https://src.fedoraproject.org/rpms/ocaml-csexp.git /var/lib/mock/f41-build-810591-146801/root/chroot_tmpdir/scmroot/ocaml-csexp
Cloning into '/var/lib/mock/f41-build-810591-146801/root/chroot_tmpdir/scmroot/ocaml-csexp'...
$ git fetch origin d548be2c709e55b7c340f284985a53d1b14be247:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-csexp
 * [new ref]         d548be2c709e55b7c340f284985a53d1b14be247 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d548be2 OCaml 5.2.0 for Fedora 41