FIX: error when loading admin > flags

app/assets/javascripts/admin/templates/flags-list.hbs

@@ -32,7 +32,7 @@
                 <span class="private-message-glyph">{{fa-icon "envelope"}}</span>
               {{/if}}
               {{topic-status topic=flaggedPost.topic}}
-              <a href='{{unbound flaggedPost.url}}'>{{{flaggedPost.topic.fancyTitle}}}</a>
+              <a href='{{unbound flaggedPost.url}}'>{{{unbound flaggedPost.topic.fancyTitle}}}</a>
             </h3>
             {{#if flaggedPost.postAuthorFlagged}}
               {{{flaggedPost.excerpt}}}

app/assets/javascripts/discourse/models/topic.js.es6

@@ -10,6 +10,7 @@ const Topic = RestModel.extend({
 
   @computed('fancy_title')
   fancyTitle(title) {
+    title = title || "";
     title = Discourse.Emoji.unescape(title);
     return Discourse.CensoredWords.censor(title);
   },

app/serializers/flagged_topic_serializer.rb

@@ -1,6 +1,7 @@
 class FlaggedTopicSerializer < ActiveModel::Serializer
   attributes :id,
              :title,
+             :fancy_title,
              :slug,
              :archived,
              :closed,