$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-here.git /var/lib/mock/f42-build-865764-173493/root/chroot_tmpdir/scmroot/ocaml-ppx-here
Cloning into '/var/lib/mock/f42-build-865764-173493/root/chroot_tmpdir/scmroot/ocaml-ppx-here'...
$ git fetch origin 6094bfb6ba315c6f33ba0df93e943d8b523713c2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-here
 * [new ref]         6094bfb6ba315c6f33ba0df93e943d8b523713c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6094bfb OCaml 5.3.0 rebuild for Fedora 42