Form Validation

Won't this return true in the 3.0.6 release when it should return false? 

   $this->load->library('form_validation');
   $inputData = ['inp' => []];
   $this->form_validation->set_data($inputData);

   $this->form_validation->set_rules('inp[]', 'Input field', 'required');

   //Will return true
   $this->form_validation->run();