From cadf979ed3c2fccaa9b6089e10b0b18acd72c5cf Mon Sep 17 00:00:00 2001
From: Toby Zerner <toby.zerner@gmail.com>
Date: Sun, 5 Jul 2015 13:58:07 +0930
Subject: [PATCH] Fix read tracking not working

---
 framework/core/js/forum/src/components/discussion-page.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/framework/core/js/forum/src/components/discussion-page.js b/framework/core/js/forum/src/components/discussion-page.js
index 9a449a09c..1181e1df1 100644
--- a/framework/core/js/forum/src/components/discussion-page.js
+++ b/framework/core/js/forum/src/components/discussion-page.js
@@ -245,7 +245,7 @@ export default class DiscussionPage extends mixin(Component, evented) {
 
     app.history.push('discussion');
 
-    if (app.session.user() && endNumber > discussion.readNumber()) {
+    if (app.session.user() && endNumber > (discussion.readNumber() || 0)) {
       discussion.save({readNumber: endNumber});
       m.redraw();
     }