Dont make new version if content didnt change

src/Service/SnipServiceFactory.php

@@ -6,10 +6,10 @@ use App\Entity\Snip;
 use App\Service\SnipContent\SnipContentService;
 use Doctrine\ORM\EntityManagerInterface;
 
-class SnipServiceFactory
+readonly class SnipServiceFactory
 {
     public function __construct(
-        private readonly EntityManagerInterface $em,
+        private EntityManagerInterface $em,
     ) {}
 
     public function create(Snip $snip): SnipContentService