post_controller_constructor hook not loading $this->session

[eluser]Webnet[/eluser]
The below class works, but my original Application controller that's loaded by the hook does not load the session.

Code:

class AbstractController extends Controller {
    protected $current_user,
              $current_company,
              $jsFiles;

    /**
     * AbstractController Construct
     *
     * @return AbstractController
     */
    public function __construct($skipRedirect = false) {
        parent::Controller();
        
        $this->load->library('session');
        $this->load->library('form_validation');
        $this->load->database();
    }

Fatal error: Call to a member function userdata() on a non-object in application.php on line 47