Comments

src/writerecord.js

@@ -290,6 +290,8 @@ function pickTopPropertyRecord(property) {
 
         //equal timestamps
         //Use machine id as tie-breaker
+        //These essentially have to be different, otherwise we would only have one record
+        // (because records with the same machine Id are digested into the same property)
         return predictableStringComparison(a.machineId, b.machineId);
     }
 

src/writerecord.test.js

@@ -663,3 +663,6 @@ describe("records anchored to each other", () => {
         expect(readPropertyValue(prop)).toBe(42);
     });
 });
+
+
+//Record anchored to itself? again "should never happen" but what do we do if it does?