$ git clone -n https://src.fedoraproject.org/rpms/ocaml-stdcompat.git /var/lib/mock/f42-build-865564-173304/root/chroot_tmpdir/scmroot/ocaml-stdcompat
Cloning into '/var/lib/mock/f42-build-865564-173304/root/chroot_tmpdir/scmroot/ocaml-stdcompat'...
$ git fetch origin 9246ebc1be408e61b8073582a192025defee4a16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-stdcompat
 * [new ref]         9246ebc1be408e61b8073582a192025defee4a16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9246ebc OCaml 5.3.0 rebuild for Fedora 42