When submitting a file greater than the max file size, and then trying to get the UploadedFile, it returns null instead of an UploadedFile instance. ``` php use Symfony\Component\Validator\Constraints\File; // adding form element $form->add('my_file', 'file', [ 'required' => true, 'constraints' => [ new File([ 'maxSize' => '5M', 'mimeTypes' => [ 'application/pdf', 'application/x-pdf', ], 'mimeTypesMessage' => 'Please upload a valid PDF', ]) ] ]); ``` ``` php // in controller $form->submit($this->getRequest()->request->all()); var_dump($form->get('my_file')->getData()); ``` _Actual:_ ``` php NULL ``` _Expected:_ ``` php Symfony\Component\HttpFoundation\File\UploadedFile Object ```