anchor.diff:                  %%       up nodes > 1, repair is required there!  In the
                   %%       current simulator, repair is not simulated and
                   %%       finished (and then growing the UPI list).  Fix.
  -                P_inner2 = P_inner#projection_v1{epoch_number=FinalInnerEpoch},
  +                P_inner2 = machi_projection:update_checksum(
  +                           P_inner#projection_v1{epoch_number=FinalInnerEpoch,
  +                                                 creation_time=FinalCreation}),
                   InnerInfo = [{inner_summary, machi_projection:make_summary(P_inner2)},
                                {inner_projection, P_inner2}],
                   DbgX = replace(P_newprop3#projection_v1.dbg, InnerInfo),
  
positive.code:                                     down=P_i#projection_v1.all_members
                                           -- [MyName]}
                            end,
  
                  FinalInnerEpoch =
                      case inner_projection_exists(P_current) of
                          false ->
                              AllFlapCounts_epk =
                                  [Epk || {{Epk,_FlTime}, _FlCount} <-
                                              get_all_flap_counts(P_newprop3)],
                              case AllFlapCounts_epk of
                                  [] ->
                                      %% HRM, distrust?...
                                      %% P_newprop3#projection_v1.epoch_number;
                                      P_newprop3#projection_v1.epoch_number;
                                  [_|_] ->
                                      lists:max(AllFlapCounts_epk)
  
negative.code:                                andalso
                                 P_oldinner#projection_v1.down ==
                                 P_inner#projection_v1.down ->
                                      FinalCreation = P_oldinner#projection_v1.creation_time,
                                      P_oldinner#projection_v1.epoch_number;
                                 true ->
                                      FinalCreation = P_newprop3#projection_v1.creation_time,
                                      P_oldinner#projection_v1.epoch_number + 1
                              end
                      end,
  