autonav issue after update to V. 8.2.1.

Permalink
Hi, I've updated my site to V.5.8.2.1 and now the following is not working on
autonav:
view.php
if ($ni->hasSubmenu) {
      //class for items that have dropdown sub-menus
      $classes[] = 'nav-dropdown';
   }

thus is also not working:
if ($ni->hasSubmenu) {
            echo '<ul class="dropdown-menu">'; //opens a dropdown sub-menu

neither of these classes is showing in the html, though other classes such as the following are working fine:
if ($ni->inPath) {
      //class for parent items of the page currently being viewed
      $classes[] = 'nav-selected nav-path-selected';
   }


Has anyone else got an issue with this?

Thanks,
Una