$ git clone -n https://src.fedoraproject.org/rpms/ocaml-bos.git /var/lib/mock/f39-build-1924098-43014/root/chroot_tmpdir/scmroot/ocaml-bos
Cloning into '/var/lib/mock/f39-build-1924098-43014/root/chroot_tmpdir/scmroot/ocaml-bos'...
$ git fetch origin 8da351872dd4f4cb037eecf478bac3b2677899f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-bos
 * [new ref]         8da351872dd4f4cb037eecf478bac3b2677899f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8da3518 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild