Rector: apply rules for doctrine code quality

src/Bundle/ChillCustomFieldsBundle/Entity/CustomFieldsDefaultGroup.php

@@ -34,14 +34,14 @@ class CustomFieldsDefaultGroup
      *
      *     sf4 check: option inversedBy="customFields" return inconsistent error mapping !!
      */
-    private $customFieldsGroup;
+    private ?\Chill\CustomFieldsBundle\Entity\CustomFieldsGroup $customFieldsGroup = null;
 
     /**
      * @var string
      *
      * @ORM\Column(type="string", length=255)
      */
-    private $entity;
+    private ?string $entity = null;
 
     /**
      * @var int
@@ -50,7 +50,7 @@ class CustomFieldsDefaultGroup
      * @ORM\Column(name="id", type="integer")
      * @ORM\GeneratedValue(strategy="AUTO")
      */
-    private $id;
+    private ?int $id = null;
 
     /**
      * Get customFieldsGroup.