From da26aae41ec5a5ae98d1d6eaa334aaabcd3ada6a Mon Sep 17 00:00:00 2001
From: Sam <sam.saffron@gmail.com>
Date: Fri, 18 Jul 2014 10:31:02 +1000
Subject: [PATCH] FIX: somehow button is not set

---
 app/assets/javascripts/discourse/lib/Markdown.Editor.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/assets/javascripts/discourse/lib/Markdown.Editor.js b/app/assets/javascripts/discourse/lib/Markdown.Editor.js
index ac8e2ad929d..148ae87c91b 100644
--- a/app/assets/javascripts/discourse/lib/Markdown.Editor.js
+++ b/app/assets/javascripts/discourse/lib/Markdown.Editor.js
@@ -1420,7 +1420,7 @@
 
             inputBox.focus();
 
-            if (button.textOp) {
+            if (button && button.textOp) {
 
                 if (undoManager) {
                     undoManager.setCommandMode();