$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-sexp-conv.git /var/lib/mock/f43-build-side-114891-61019822-6587803/root/chroot_tmpdir/scmroot/ocaml-ppx-sexp-conv
Cloning into '/var/lib/mock/f43-build-side-114891-61019822-6587803/root/chroot_tmpdir/scmroot/ocaml-ppx-sexp-conv'...
$ git fetch origin 0d567024421c35c302bd8f498bc9a829dcec6b57:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-sexp-conv
 * [new ref]         0d567024421c35c302bd8f498bc9a829dcec6b57 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d56702 Version 0.17.1