$ git clone -n https://src.fedoraproject.org/rpms/ocaml-topkg.git /var/lib/mock/f40-build-784151-133250/root/chroot_tmpdir/scmroot/ocaml-topkg
Cloning into '/var/lib/mock/f40-build-784151-133250/root/chroot_tmpdir/scmroot/ocaml-topkg'...
$ git fetch origin 2cf6c7c47ceac20dea3f6f7ca2edd6f794ba8f63:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-topkg
 * [new ref]         2cf6c7c47ceac20dea3f6f7ca2edd6f794ba8f63 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2cf6c7c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild