Exposed filters are not inherited by attachment when view is created with views_get_view() in code

I'm using views_get_view() and $view->set_exposed_input() to build a view in code.

The view has an attachment which inherits the exposed filters. The inheritance works fine when the view is displayed as a page, but when rendered through the views_get_view() the attachment ignores the exposed filters that are being set:

  $view = views_get_view('landmarks');
  $view->set_exposed_input(array('circle' => array('value' => 10, 'location' => 'Boston')));
  $view->build('page_1');
  $return = $view->preview();