anchor.diff:                      if
                           Id0 =/= OldId ->
                               {false, {unexpected_id, Current, Next}};
  -                        % @todo remove owner check
  -                        O0 =/= OldOwner->
  +                        O0 =/= OldOwner ->
                               {false, {unexpected_owner, Current, Next}};
                           Aux0 =/= OldAux ->
                               {false, {unexpected_aux, Current, Next}};
  
positive.code:                     log:pal("re-write in CC:~n~w~n~w~n~w~n~w~n~w~n", 
                              [Current, Next, Old, New, Writer]),
                      {true, null};
                  % check that epoch and version match with Old
                  #lease{epoch = E0, version = V0} when  E0 =:= OldEpoch andalso V0 =:= OldVersion ->
                      % @todo sanity check with warnings: protocol was implemented correctly
                      EpochUpdate = (NewEpoch =:= OldEpoch + 1) andalso (NewVersion =:= 0),
  
negative.code: -include("scalaris.hrl").
  -include("record_helpers.hrl").
  
  -define(WARN(BOOL, BOOL2, TEXT),
          if
              BOOL andalso not (BOOL2) ->
                  log:log("loncq: " ++ TEXT);
  