$ git clone -n https://src.fedoraproject.org/rpms/ocaml-stdio.git /var/lib/mock/f40-build-767981-125152/root/chroot_tmpdir/scmroot/ocaml-stdio
Cloning into '/var/lib/mock/f40-build-767981-125152/root/chroot_tmpdir/scmroot/ocaml-stdio'...
$ git fetch origin 2c66e848ba55264c04dd420180415d1d570cc3f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-stdio
 * [new ref]         2c66e848ba55264c04dd420180415d1d570cc3f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c66e84 OCaml 5.1.1 + s390x code gen fix for Fedora 40