Mam zainstalowane symfony 2.5 + FOS + SONATA

Chcę zmienić ilość pól na formularzu rejestracyjnym usera poprzez overriding, wydaje mi się że robię wszystko tak jak pokazuje instrukcja, ale nie działa niestety, może ktoś się dopatrzy dlaczego?

Plik który ma zastąpić oryginał znajduje się w:
src/Application/Sonata/UserBundle/Form/Type/RegistrationFormType.php

[PHP] pobierz, plaintext 
 
namespace Sonata\UserBundle\Form\Type;
 
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
 
class RegistrationFormType extends AbstractType
{
    private $class;
 
    /**
     * @var array
     */
    protected $mergeOptions;
 
    /**
     * @param string $class        The User class name
     * @param array  $mergeOptions Add options to elements
     */
    public function __construct($class, array $mergeOptions = array())
    {
        $this->class        = $class;
        $this->mergeOptions = $mergeOptions;
    }
 
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('username', null, array_merge(array(
                'label' => 'form.username',
                'translation_domain' => 'SonataUserBundle',
            ), $this->mergeOptions))
            ->add('plainPassword', 'repeated', array_merge(array(
                'type' => 'password',
                'options' => array('translation_domain' => 'SonataUserBundle'),
                'first_options' => array_merge(array(
                    'label' => 'form.password',
                ), $this->mergeOptions),
                'second_options' => array_merge(array(
                    'label' => 'form.password_confirmation',
                ), $this->mergeOptions),
                'invalid_message' => 'fos_user.password.mismatch',
            ), $this->mergeOptions))
        ;
    }
 
    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => $this->class,
            'intention'  => 'registration',
        ));
    }
 
    public function getName()
    {
        return 'sonata_user_registration';
    }
}
[PHP] pobierz, plaintext 

Config.yml

[PHP] pobierz, plaintext 
 
fos_user:
    db_driver: orm # other valid values are 'mongodb', 'couchdb' and 'propel'
    firewall_name: main
    user_class:    Application\Sonata\UserBundle\Entity\User
    registration:
      form:
        type: application_sonata_user_registration
    group:
        group_class:   Application\Sonata\UserBundle\Entity\Group
        group_manager: sonata.user.orm.group_manager
    service:
        user_manager: sonata.user.orm.user_manager
 
services:
    application_sonata_user.registration.form.type:
        class: Application\Sonata\UserBundle\Form\Type\RegistrationFormType
        arguments: [%fos_user.model.user.class%]
        tags:
            - { name: form.type, alias: application_sonata_user_registration } 
[PHP] pobierz, plaintext