Add in missing available includes

app/models/forum_topic_visit.rb

@@ -10,4 +10,8 @@ class ForumTopicVisit < ApplicationRecord
     q = search_attributes(params, :id, :created_at, :updated_at, :user, :forum_topic_id, :last_read_at)
     q.apply_default_order(params)
   end
+
+  def self.available_includes
+    [:forum_topic]
+  end
 end