I've created an ajax view with a pager. It does not use the HS widget, and there is no HS widget on the page.
When I try to go to the next page, the request is successful and the response is valid, but it contains
Drupal.HierarchicalSelect.ajaxViewPagerSettingsUpdate as a callback. When the HS widget isn't on the screen, this script isn't loaded and this is a fatal error. In my case, the view doesn't get updated.