$ git clone -n https://src.fedoraproject.org/rpms/ocaml-dose3.git /var/lib/mock/f41-build-1115164-20214/root/chroot_tmpdir/scmroot/ocaml-dose3
Cloning into '/var/lib/mock/f41-build-1115164-20214/root/chroot_tmpdir/scmroot/ocaml-dose3'...
$ git fetch origin e340a997ccd455cda64a69e493e9548e281b6e2b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-dose3
 * [new ref]         e340a997ccd455cda64a69e493e9548e281b6e2b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e340a99 OCaml 5.2.0 ppc64le fix