$ git clone -n https://src.fedoraproject.org/rpms/ocaml-fieldslib.git /var/lib/mock/f39-build-2472926-61494/root/chroot_tmpdir/scmroot/ocaml-fieldslib
Cloning into '/var/lib/mock/f39-build-2472926-61494/root/chroot_tmpdir/scmroot/ocaml-fieldslib'...
$ git fetch origin 02d958f01c933ff1fc94bbc018d99d6432ad7232:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-fieldslib
 * [new ref]         02d958f01c933ff1fc94bbc018d99d6432ad7232 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 02d958f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild