message: Ref Fix ordered_non_unique index
diff: @@ -49,8 +49,12 @@ using producer_multi_index = chainbase::shared_multi_index_container<
  indexed_by<
  ordered_unique<tag<by_id>, member<producer_object, producer_object::id_type, &producer_object::id>>,
  ordered_unique<tag<by_owner>, member<producer_object, AccountName, &producer_object::owner>>,
  -#warning using ordered_non_unique is not deterministic
  - ordered_non_unique<tag<by_key>, member<producer_object, public_key_type, &producer_object::signing_key>>
  + ordered_unique<tag<by_key>,
  + composite_key<producer_object,
  + member<producer_object, public_key_type, &producer_object::signing_key>,
  + member<producer_object, producer_object::id_type, &producer_object::id>
  + >
  + >
  >
  >;
  