$ git clone -n https://src.fedoraproject.org/rpms/ocaml-pyml.git /var/lib/mock/f40-build-2265375-54598/root/chroot_tmpdir/scmroot/ocaml-pyml
Cloning into '/var/lib/mock/f40-build-2265375-54598/root/chroot_tmpdir/scmroot/ocaml-pyml'...
$ git fetch origin 345ccd1a5284361d3644f5a250baa86bc323d03d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-pyml
 * [new ref]         345ccd1a5284361d3644f5a250baa86bc323d03d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 345ccd1 OCaml 5.1.1 + s390x code gen fix for Fedora 40