Fix migrations

src/Entity/Folder.php

@@ -16,7 +16,7 @@ use Symfony\Component\Validator\Constraints as Assert;
 class Folder extends Document
 {
     /**
-     * @ORM\Column(type="text", length=65535)
+     * @ORM\Column(type="text", length=4294967295, nullable=true)
      * @Gedmo\Versioned
      * @Assert\Length(
      *     max=65535,