$ git clone -n https://src.fedoraproject.org/rpms/ocaml-psmt2-frontend.git /var/lib/mock/f42-build-865633-173376/root/chroot_tmpdir/scmroot/ocaml-psmt2-frontend
Cloning into '/var/lib/mock/f42-build-865633-173376/root/chroot_tmpdir/scmroot/ocaml-psmt2-frontend'...
$ git fetch origin 6d78a58c05ee0e8711e2e1e758ff9360728e64f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-psmt2-frontend
 * [new ref]         6d78a58c05ee0e8711e2e1e758ff9360728e64f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d78a58 OCaml 5.3.0 rebuild for Fedora 42