anchor.diff:      Tid = tx_state:get_tid(TxState),
       RTMs = tx_state:get_rtms(TxState),
       CleanRTMs = rtms_get_rtmpids(RTMs),
  -    Accs = rtms_get_accpids(RTMs),
  +    Accs = [ X || X <- rtms_get_accpids(RTMs), unknown =/= X ],
       TM = comm:this(),
       _ = [ begin
             %% ItemState = lists:keyfind(ItemId, 1, ItemStates),
  
positive.code:             Maj = config:read(quorum_factor),
              RTMs = tx_state:get_rtms(TxState),
              Role = state_get_role(State),
              Accs = rtms_get_accpids(RTMs),
              {_, _, ThisRTMsNumber, _} = lists:keyfind(comm:this(), 2, RTMs),
  
              %% add ourselves as learner and
  
negative.code: -type rtm() :: {?RT:key(),
                  comm:mypid() | unknown,
                  Role :: non_neg_integer(),
                  (Acceptor :: comm:mypid()) | unknown}.
  
  -type rtms() :: [rtm()].
  
  