$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-import.git /var/lib/mock/f40-build-784009-133236/root/chroot_tmpdir/scmroot/ocaml-ppx-import
Cloning into '/var/lib/mock/f40-build-784009-133236/root/chroot_tmpdir/scmroot/ocaml-ppx-import'...
$ git fetch origin 0db02a37a3b640ec4ba075198905d894bd816e2d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-import
 * [new ref]         0db02a37a3b640ec4ba075198905d894bd816e2d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0db02a3 Rebuild for changed ocamlx hashes