From 0f1ae7a00bb551b571cd07f416c36bf94548e96f Mon Sep 17 00:00:00 2001
From: Russell Michell <russell@silverstripe.com>
Date: Fri, 23 Aug 2013 15:30:16 +1200
Subject: [PATCH] BUGFIX: - Fixes issue with CMS permissions checkbox, which
 won't un-toggle checked-checkboxes, after being clicked a 2nd time

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

diff --git a/javascript/PermissionCheckboxSetField.js b/javascript/PermissionCheckboxSetField.js
index ef53e910e..5e234befe 100644
--- a/javascript/PermissionCheckboxSetField.js
+++ b/javascript/PermissionCheckboxSetField.js
@@ -77,8 +77,8 @@
 					});
 				} else {
 					checkboxes.each(function() {
-						$(this).attr('checked', '');
-						$(this).attr('disabled', '');
+						$(this).prop('checked', false);
+						$(this).prop('disabled', false);
 					});
 				}
 			}