$ git clone -n https://src.fedoraproject.org/rpms/ocaml-lacaml.git /var/lib/mock/f39-build-1545768-36699/root/chroot_tmpdir/scmroot/ocaml-lacaml
Cloning into '/var/lib/mock/f39-build-1545768-36699/root/chroot_tmpdir/scmroot/ocaml-lacaml'...
$ git fetch origin fddc8f1206b8c0a20ab9028c0e46cb54d911e4d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-lacaml
 * [new ref]         fddc8f1206b8c0a20ab9028c0e46cb54d911e4d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fddc8f1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild