$ git clone -n https://src.fedoraproject.org/rpms/ocaml-jst-config.git /var/lib/mock/f40-build-784456-133438/root/chroot_tmpdir/scmroot/ocaml-jst-config
Cloning into '/var/lib/mock/f40-build-784456-133438/root/chroot_tmpdir/scmroot/ocaml-jst-config'...
$ git fetch origin 170456ff00906b79e015a7e6f37e0bd8cdf3d031:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-jst-config
 * [new ref]         170456ff00906b79e015a7e6f37e0bd8cdf3d031 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 170456f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild