Author subscription page does not display correct user's author subscriptions

The problem lies in notifications_content.module, line 51:

$items['user/%user/notifications/author'] = array(
    'type' => MENU_LOCAL_TASK,
    'access callback' => FALSE,
    'title' => t('Author'),
    'page callback' => 'notifications_content_page_author',
    'pàge arguments' => array(1),
    'weight' => 10,
    'file' => 'notifications_content.pages.inc',
  );

Took me a while to see it, but you'll notice that there's something a little different with the page arguments array index :)

Later on, when notifications_content_page_author() gets called, there will be no argument passed in since there are no 'page arguments' defined, so it will use the global $user object to gather the info to render the page. So let's say you have an admin trying to view the author subscriptions for user 5. Instead of seeing user 5's author subscriptions, the admin sees their own author subscriptions.