$ git clone -n https://src.fedoraproject.org/rpms/ocaml-sexplib.git /var/lib/mock/f40-build-784054-133250/root/chroot_tmpdir/scmroot/ocaml-sexplib
Cloning into '/var/lib/mock/f40-build-784054-133250/root/chroot_tmpdir/scmroot/ocaml-sexplib'...
$ git fetch origin dfe55a2a8ac44f1fa249e69c9d6d11d21fd3ea9f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-sexplib
 * [new ref]         dfe55a2a8ac44f1fa249e69c9d6d11d21fd3ea9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dfe55a2 Fix the SPDX expression