add DiscourseEvent triggers necessary to update a user's permissions before they're notified

app/jobs/regular/notify_mailing_list_subscribers.rb

@@ -32,6 +32,7 @@ module Jobs
                      WHERE cu.category_id = ? AND cu.user_id = users.id AND cu.notification_level = ?
                   )', post.topic.category_id, CategoryUser.notification_levels[:muted])
 
+      DiscourseEvent.trigger(:notify_mailing_list_subscribers, users, post)
       users.find_each do |user|
         if Guardian.new(user).can_see?(post)
           if EmailLog.reached_max_emails?(user)