$ git clone -n https://src.fedoraproject.org/rpms/ocaml-mccs.git /var/lib/mock/f40-build-2088062-50166/root/chroot_tmpdir/scmroot/ocaml-mccs
Cloning into '/var/lib/mock/f40-build-2088062-50166/root/chroot_tmpdir/scmroot/ocaml-mccs'...
$ git fetch origin 8fa4cb2aa96d830002b1640f3a96f86b21a75202:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-mccs
 * [new ref]         8fa4cb2aa96d830002b1640f3a96f86b21a75202 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8fa4cb2 OCaml 5.1.1 + s390x code gen fix for Fedora 40