Merge pull request #11344 from d-ph/patch-2

Change the lock mode in the "Aggregate Fields" cookbook (aggregate-fields.rst) article.

Author: greg0ire

docs/en/cookbook/aggregate-fields.rst

@@ -352,7 +352,7 @@ the database using a FOR UPDATE.
     use Bank\Entities\Account;
     use Doctrine\DBAL\LockMode;
 
-    $account = $em->find(Account::class, $accId, LockMode::PESSIMISTIC_READ);
+    $account = $em->find(Account::class, $accId, LockMode::PESSIMISTIC_WRITE);
 
 Keeping Updates and Deletes in Sync
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