anchor.diff:                  true -> %% No mnesia nodes -> create new table
                       MakeTable = fun(TabName, RecordName, RecordFields) ->
                           Ans = case mnesia:create_table(TabName, [{record_name, RecordName}, {attributes, RecordFields},
  -                            {ram_copies, [Node]}, {type, set}, {majority, true}]) of
  +                            {ram_copies, [Node]}, {type, set}]) of
                               {atomic, ok} -> ok;
                               {aborted, {already_exists, TabName}} ->
                                   ok;
  
positive.code:             mnesia:read(LNT, Key);
          _ ->
              log(normal, "dirty -> ~p:exists_link_doc(~p)", [ModelName, Key]),
              mnesia:dirty_read(LNT, Key)
      end,
      case TmpAns of
          [] -> {ok, false};
  
negative.code:             mnesia:read(table_name(ModelConfig), Key);
          _ ->
              log(normal, "dirty -> ~p:exists(~p)", [ModelName, Key]),
              mnesia:activity(ets, fun() ->
                  mnesia:read(table_name(ModelConfig), Key)
              end)
      end,
      case TmpAns of
          [] -> {ok, false};
  