anchor.diff:      case execute_command(OpType, Args, Sender, State) of
           {committing_2pc, Data} ->
               {next_state, committing_2pc, Data};
  -        {committing_2pc, Data, Actions = [{reply,_,_}]} ->
  +        {committing_2pc, Data, Actions = [{reply, _, _}]} ->
               {next_state, committing_2pc, Data, Actions};
           {receive_prepared, Data} ->
               {next_state, receive_prepared, Data};
  
positive.code:                             prepare_time = MaxPrepareTime,
                              commit_time = MaxPrepareTime,
                              state = committing
                          },[{reply, From, {ok, MaxPrepareTime}}]}
                  end
          end;
          _ ->
  
negative.code:                                     {next_state, start_tx, Data};
                                  {committing, Data} ->
                                      {next_state, committing, Data};
                                  {committing, Data, Actions = [{reply, _, _}]} ->
                                      {next_state, committing, Data, Actions};
                                  {single_committing, Data} ->
                                      {next_state, single_committing, Data};
  