Fix bulk insert issue

app/Services/Search/Drivers/ManticoreSearchDriver.php

@@ -366,7 +366,7 @@ class ManticoreSearchDriver implements SearchDriverInterface
 
             $documents[] = array_merge(
                 ['id' => $release['id']],
-                ReleaseSearchIndexDocument::normalize($release)
+                ReleaseSearchIndexDocument::normalizeForBulk($release)
             );
         }
 

app/Support/ReleaseSearchIndexDocument.php

@@ -9,6 +9,26 @@ namespace App\Support;
  */
 final class ReleaseSearchIndexDocument
 {
+    /**
+     * Normalize a release row for bulk indexing. Rows already produced by {@see normalize()}
+     * (e.g. from release search populate) lack `postdate` / `adddate` keys;
+     * calling {@see normalize()} again would zero `postdate_ts` / `adddate_ts` unless those sources are restored.
+     *
+     * @param  array<string, mixed>  $row
+     * @return array<string, mixed>
+     */
+    public static function normalizeForBulk(array $row): array
+    {
+        if (array_key_exists('postdate_ts', $row) && ! array_key_exists('postdate', $row)) {
+            $row = array_merge($row, [
+                'postdate' => $row['postdate_ts'] ?? null,
+                'adddate' => $row['adddate_ts'] ?? null,
+            ]);
+        }
+
+        return self::normalize($row);
+    }
+
     /**
      * @param  array<string, mixed>  $row  Keys from DB or insert parameters
      * @return array<string, mixed>