$ git clone -n https://src.fedoraproject.org/rpms/ocaml-srpm-macros.git /var/lib/mock/f39-build-2471303-61453/root/chroot_tmpdir/scmroot/ocaml-srpm-macros
Cloning into '/var/lib/mock/f39-build-2471303-61453/root/chroot_tmpdir/scmroot/ocaml-srpm-macros'...
$ git fetch origin 3a72da78c902dbe264a315c93a206f6486514ebd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-srpm-macros
 * [new ref]         3a72da78c902dbe264a315c93a206f6486514ebd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a72da7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild