lane T2: the phase's leaf self-report is its own accounting, not the report's

src/app/treaty.cpp

@@ -77,10 +77,11 @@ TreatyStampResult StampTreatyTurns(std::vector<PlayerEntry>& players, std::int32
             if (field) *field = frame;
         }
     }
-    // A created entry puts a whole record on the wire, not one value: its own leaf plus the
+    // The phase's own accounting: one for each stamp that moved a value, plus one for each
-    // element leaf the container gains. A stamp into an entry that already existed moves one
+    // record that did not exist before. It is deliberately NOT an attempt to predict the
-    // leaf. Counting it this way keeps the phase's self-report in the same currency as the
+    // divergence report's leaf count, which also charges two container leaves to each player
-    // divergence report rather than in a currency of its own.
+    // whose ledger goes from empty to non-empty -- on the reference pair this reports 28
+    // where the report closes 26. The report is the authority; this is what the phase did.
     r.leafWrites = r.fieldsWritten + r.entriesCreated;
     return r;
 }