Doctrine ORM, many to many, lazy loading. Retrieve an Entity and fetch join all the feautures - orm

Question

I have Zend Framework 3 + Doctrine ORM application.
Class Goods have link "characters":
/**
* Goods
*
* #ORM\Entity
* #ORM\Table(name="goods")
* #property int $id
*/
class Goods implements InputFilterAwareInterface
{
/**
* #ORM\ManyToMany(targetEntity="\Application\Entity\CharacterValue", inversedBy="goods")
* #ORM\JoinTable(name="character_value_item",
* joinColumns={#ORM\JoinColumn(name="good_id", referencedColumnName="id")},
* inverseJoinColumns={#ORM\JoinColumn(name="value_id", referencedColumnName="id")})
**/
protected $characters;
public function getCharacters()
{
return $this->characters;
}
}
I trying to use this method to get characters by method for lazy loading, but it returns just one character. Not all characters for the product.
$dql = 'SELECT u, ch FROM Goods u LEFT JOIN u.characters ch';
This method from here:
$query = $em->createQuery('SELECT u, p FROM CmsUser u JOIN u.phonenumbers p');
$users = $query->getResult(); // array of CmsUser objects with the phonenumbers association loaded
$phonenumbers = $users[0]->getPhonenumbers();
https://www.doctrine-project.org/projects/doctrine-orm/en/2.7/reference/dql-doctrine-query-language.html#dql-select-examples
I do not understand why documentation's method working wrong. What is the right way to deside my issue?