Preserve evidence across workbook updates

app.js

@@ -182,18 +182,23 @@ function documentationRecord(row) {
 }
 
 function hydrateRecordKeys(records) {
+  const currentKeys = new Set(payload?.rows.map((row) => row.sampleKey) || []);
   return records.map((record) => {
-    if (record.sampleKey) return record;
+    if (record.sampleKey && currentKeys.has(record.sampleKey)) return record;
     const match = payload?.rows.find((row) => {
       if (record.commercialRecord && row.commercialRecord === record.commercialRecord) {
-        return !record.researcher || row.researcher === record.researcher;
+        return true;
       }
       return (
         normalize(row.establishmentName) === normalize(record.establishmentName) &&
-        (!record.researcher || row.researcher === record.researcher)
+        (!record.contractNumber || row.contractNumber === record.contractNumber)
       );
     });
-    return { ...record, sampleKey: match?.sampleKey || "" };
+    return {
+      ...record,
+      sampleKey: match?.sampleKey || record.sampleKey || "",
+      researcher: match?.researcher || record.researcher,
+    };
   });
 }