anchor.diff:      ?assertEqual({ok, OldRecord},
           rpc:call(Node, model, get, [?MODEL, Key])),
   
  -    ?assertEqual(ok, rpc:call(Node, service_onepanel, init_cluster, [#{}])),
  +    ?assertEqual(ok, rpc:call(Node, onepanel_db, upgrade_tables, [])),
   
       ?assertMatch([ExpectedDoc],
           rpc:call(Node, model, transaction, [fun() ->
  
positive.code:         mnesia:write(?MODEL, OldDoc, write)
      end])),
  
      ?assertMatch(#error{}, rpc:call(Node, service_onepanel, init_cluster, [#{}])).
  
  
  %%%===================================================================
  
negative.code:         mnesia:write(?MODEL, Record, write)
      end])),
  
      ok = rpc:call(Node, onepanel_db, upgrade_tables, []),
  
      ?assertMatch([#document{key = Key, value = Record}],
          rpc:call(Node, model, transaction, [fun() ->
  