$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-js-style.git /var/lib/mock/f41-build-side-1-3071849-38819/root/chroot_tmpdir/scmroot/ocaml-ppx-js-style
Cloning into '/var/lib/mock/f41-build-side-1-3071849-38819/root/chroot_tmpdir/scmroot/ocaml-ppx-js-style'...
$ git fetch origin 087e5d80389fe0cc8e21eeccc2f9f70077dd033e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-js-style
 * [new ref]         087e5d80389fe0cc8e21eeccc2f9f70077dd033e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 087e5d8 Rebuild for ocaml-ppxlib 0.33.0