Fix output during batch-duplicates to include path of duplicate

Increase EXIF extraction concurrency to 5

server/scanner.js

@@ -238,7 +238,12 @@ function processBlock(items) {
             /* If this asset exists in this transaction block, push it into the results */
             for (let i = 0; i < index; i++) {
               if (batch[i].hash == asset.hash) {
-                results.push(batch[i]);
+                results.push({
+                  id: batch[i].id,
+                  hash: batch[i].hash,
+                  path: batch[i].album.path,
+                  filename: batch[i].filename
+                });
               }
             }
 
@@ -424,7 +429,7 @@ function processBlock(items) {
         console.warn("Continuing file processing.");
       });
     }, {
-      concurrency: 1
+      concurrency: 5
     });
   }).then(function() {
     console.log("Completed processing queue. Marking " + duplicates.length + " duplicates.");