Restore review-flagged comment content cut too aggressively in comment reduction

src/core/wire/sample_usage.cpp

@@ -65,6 +65,9 @@ UsagePublishPlan planUsagePublish(const std::optional<std::string>& existing,
     plan.wire = encodeUsageRecord(cleanMine);
 
     if (!existing || existing->empty()) {
+        // NOTE (>16 MB gap): readReasamplerExtState returning nullopt for a value
+        // larger than 16 MB is indistinguishable from "absent" here, so that narrow
+        // case also takes this fresh-write branch rather than remint.
         return plan;  // fresh key — write mine
     }
 

src/core/wire/sample_usage.h

@@ -28,6 +28,10 @@
 //                          never degrade toward delete);
 //   * unreadable record -> ABORT the prune entirely (a record we cannot read
 //                          may protect anything; halting deletes nothing).
+//                          Residual: readReasamplerExtState returning nullopt
+//                          for a >16 MB value is indistinguishable from
+//                          "absent" at the publish site, so that narrow case
+//                          takes the fresh-write branch, not remint.
 //
 // Liveness is decided extension-side at read time, not by teardown clearing
 // (REAPER destroys the plugin instance when an FX goes offline, including