FIX: prepend 'continue discussion' link to topic template

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

@@ -509,7 +509,7 @@ export default Ember.Controller.extend(SelectedPostsCount, BufferedContent, {
       }).then(q => {
         const postUrl = `${location.protocol}//${location.host}${post.get('url')}`;
         const postLink = `[${Handlebars.escapeExpression(self.get('model.title'))}](${postUrl})`;
-        composerController.get('model').appendText(`${I18n.t("post.continue_discussion", { postLink })}\n\n${q}`);
+        composerController.get('model').prependText(`${I18n.t("post.continue_discussion", { postLink })}\n\n${q}`, {new_line: true});
       });
     },
 

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

@@ -360,6 +360,15 @@ const Composer = RestModel.extend({
     return before.length + text.length;
   },
 
+  prependText(text, opts) {
+    const reply = (this.get('reply') || '');
+
+    if (opts && opts.new_line && reply.length > 0) {
+      text = text.trim() + "\n\n";
+    }
+    this.set('reply', text + reply);
+  },
+
   applyTopicTemplate(oldCategoryId, categoryId) {
     if (this.get('action') !== CREATE_TOPIC) { return; }
     let reply = this.get('reply');