anchor.diff:           end,
       P3 = machi_projection:update_checksum(
              P2#projection_v1{mode=CMode, witnesses=OldWitness_list}),
  -    ?REACT({xxx,?LINE,[machi_projection:make_summary(P3)]}),
  +    ?REACT({calc,?LINE,[machi_projection:make_summary(P3)]}),
       {P3, S#ch_mgr{runenv=RunEnv3}, Up}.
   
   check_latest_private_projections_same_epoch(FLUs, MyProj, Partitions, S) ->
  
positive.code:                                                   {up0, Up0},
                                                    {up, Up},
                                                    {all_hosed, AllHosed},
                                                    {not_enough_witnesses,true}]},
                                   machi_projection:update_checksum(P_none1)
                           end
  
negative.code: 
      NewUp = Up -- LastUp,
      Down = AllMembers -- Up,
      ?REACT({calc,?LINE,[{old_upi, OldUPI_list},
                          {old_repairing,OldRepairing_list},
                          {last_up, LastUp}, {up0, Up0}, {all_hosed, AllHosed},
                          {up, Up}, {new_up, NewUp}, {down, Down}]}),
  
      NewUPI_list =
  