From 1571d3542d237ed2958711f0254013d5859f6642 Mon Sep 17 00:00:00 2001
From: Kirk Mayo <kirk@silverstripe.com>
Date: Mon, 21 Jan 2013 12:56:02 +1300
Subject: [PATCH] BUG Only use $.button in onunmatch if init'ed (fixes #8181)

---
 javascript/CMSMain.EditForm.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/javascript/CMSMain.EditForm.js b/javascript/CMSMain.EditForm.js
index 4bb5a950..ecda62ed 100644
--- a/javascript/CMSMain.EditForm.js
+++ b/javascript/CMSMain.EditForm.js
@@ -321,8 +321,10 @@
 				this._super(e);
 			},
 			onunmatch: function(e) {
-				this.find('button[name=action_save]').button('option', 'showingAlternate', false);
-				this.find('button[name=action_publish]').button('option', 'showingAlternate', false);
+				var saveButton = this.find('button[name=action_save]');
+				if(saveButton.data('button')) saveButton('option', 'showingAlternate', false);
+				var publishButton = this.find('button[name=action_publish]');
+				if(publishButton.data('button')) publishButton('option', 'showingAlternate', false);
 				this._super(e);
 			}
 		});