anchor.diff:  add_takeover(#state{takeovers=Takeovers} = State, Lease) ->
       Id = l_on_cseq:get_id(Lease),
       case gb_trees:lookup(Id, Takeovers) of
  -        {value, Val} ->
  +        {value, _Val} ->
               % @todo ?!?
               State;
           none ->
  
positive.code:             State
      end;
  
  on({merge_after_rm_change, L2, ActiveLease, Result}, State) ->
      log:log("merge after rm_change: ~w", [Result]),
      State;
  
  on({merge_after_leave, NewLease, OldLease, Result}, State) ->
      log:log("merge after finish done: ~w", [Result]),
      State.
  
  
negative.code:             State
      end;
  
  on({takeover_after_rm_change, _Lease, Result}, State) ->
      log:log("takeover_after_rm_change ~w", [Result]),
      case Result of
          {takeover, failed, L, Error} ->
  