anchor.diff:  %% export Public API
   -export([new/2,
            active_manifest/1,
  -         active_manifests/1,
  +         active_and_writing_manifests/1,
            overwritten_UUIDs/1,
            mark_pending_delete/2,
            mark_scheduled_delete/2,
  
positive.code: %%% Internal functions
  %%%===================================================================
  
  orddict_values(OrdDict) ->
      %% orddict's are by definition
      %% represented as lists, so no
  
negative.code:     end.
  
  %% @doc Return a list of all manifests in the
  %% `active' or `writing' state
  -spec active_and_writing_manifests(term()) -> [lfs_manifest()].
  active_and_writing_manifests(Manifests) ->
      filter_manifests_by_state(Manifests, [active, writing]).
  
  %% @doc Mark all active manifests
  %% that are not "the most active"
  