Fix data overwrite on reload by ignoring duplicates in dropbox-sync

api/dropbox-sync.js

@@ -39,7 +39,7 @@ export default async function handler(req, res) {
       .from('products')
       .upsert(productsToUpsert, { 
         onConflict: 'product_id',
-        ignoreDuplicates: false 
+        ignoreDuplicates: true 
       });
 
     if (error) {