Person entity with nullable EmailAddress value object

Person.php

<?php

declare(strict_types=1);

namespace App\Something\Domain\Entity;

/**
 * @ORM\Entity
 */
class Person extends DomainEntity
{
    /**
     * @ORM\Embedded(class="App\Something\Domain\ValueObject\EmailAddress", columnPrefix=false)
     */
    protected ?EmailAddress $emailAddress = null;
}