Custom validation not working after update

Please help me with the following problem.
Our end user has to attach their CV as a file or write a short bio in textfield below. If both fields are empty, the form gets invalidated.

Here is what used to be a working code up until your latest changes:

add_filter( 'wpcf7_validate', 'wpq_validate' );
function wpq_validate( $result ) {
        $form = WPCF7_Submission::get_instance();
        $cv_file = $form->get_posted_data('cv_file');
        $cv = $form->get_posted_data('cv_textfield');
        if( empty($cv_file) && empty($cv) ) {
        $result->invalidate('cv_file', __( 'some message', 'theme' ) );
        $result->invalidate('cv_textfield', __( 'some messsage', 'theme' ) );
        }
        return $result;
}

I tried literally everything, but file tag is always null…