$field in doctrine_orm_callback is empty

[webdevilopers]

use Sonata\CoreBundle\Form\Type\BooleanType;

class PersonAdmin extends Admin
{
    protected function configureDatagridFilters(DatagridMapper $filterMapper)
    {
        $filterMapper
            ->add('employmentContracts', 'doctrine_orm_callback', array(
                    'callback' => function($queryBuilder, $alias, $field, $value) {
                            if (!isset($value['value'])) {
                                return;
                            }

                            if ($value['value'] == BooleanType::TYPE_YES) {
//                                $queryBuilder->andWhere(sprintf('SIZE(%s.%s) > 0', $alias, $field));
                                $queryBuilder->andWhere(sprintf('SIZE(%s.%s) > 0', $alias, 'employmentContracts'));
                            }

                            if ($value['value'] == BooleanType::TYPE_NO) {
                                $queryBuilder->andWhere(sprintf('SIZE(%s.%s) = 0', $alias, 'employmentContracts'));
                            }

                            return true;
                        }
                    ), 'choice', array(
                        'translation_domain' => 'SonataCoreBundle',
                        'choices' => array(
                            BooleanType::TYPE_YES => 'label_type_yes',
                            BooleanType::TYPE_NO  => 'label_type_no'
                        )
                    )
                )

When the filter is applied $field will be empty. It has to be set manually.

Source:
https://github.com/sonata-project/SonataDoctrineORMAdminBundle/blob/master/Filter/CallbackFilter.php#L29-36

But when I comment out the callback method the error message correctly displays the content:
Please provide a valid callback option "filter" for field "employmentContracts"
Since it uses $this->getName().

I guess $this->getName() should be passed to the call_user_func too, right?

[core23]

This issue should be fixed in the latest master version. Please have a look at the docs.

If this is still present, feel free to reopen this issue