anchor.diff:                          ?REACT({b10, ?LINE, [{down_inner, Down_inner}]}),
                           true;
                       false ->
  -                        ?REACT({b10, ?LINE, [{down_inner, Down_inner}]}),
  -                        false
  +                        #projection_v1{epoch_number=Epoch_current} =
  +                            inner_projection_or_self(P_current),
  +                        Latest_GTE_Epoch_p = EpochLatest_i >= Epoch_current,
  +                        ?REACT({b10, ?LINE, [{down_inner, Down_inner},
  +                                      {latest_GTE_epoch, Latest_GTE_Epoch_p}]}),
  +                        not Latest_GTE_Epoch_p
                   end;
               _Else_u ->
                   false
  
positive.code:     catch
          throw:{zerf,no_common} ->
              FirstEpoch_p = case get(epochs) of
                                 [0]                                -> true;
                                 [?SET_CHAIN_MEMBERS_EPOCH_SKIP, 0] -> true;
                                 _                                  -> false
                             end,
              if FirstEpoch_p ->
                      %% Epoch 0 special case: make the "all" projection.
  
negative.code: 
  react_to_env_B10(Retries, P_newprop, P_latest, LatestUnanimousP,
                   Rank_newprop, Rank_latest,
                   #ch_mgr{name=MyName, flap_limit=FlapLimit, proj=P_current}=S)->
      ?REACT(b10),
  
      {_P_newprop_flap_time, P_newprop_flap_count} = get_flap_count(P_newprop),
      UnanimousLatestInnerNotRelevant_p =
          case inner_projection_exists(P_latest) of
              true when P_latest#projection_v1.author_server /= MyName ->
                  #projection_v1{down=Down_inner,
                          epoch_number=EpochLatest_i} = inner_projection_or_self(
                                                           P_latest),
                  case lists:member(MyName, Down_inner) of
                      true ->
                          %% Some foreign author's inner projection thinks that
  