From 374c718d49197cc0203ffc31b9929e8204252b50 Mon Sep 17 00:00:00 2001
From: Mads Rasmussen <mads@umbraco.com>
Date: Mon, 24 Aug 2015 15:58:04 +0200
Subject: [PATCH] Validation pattern match - check for empty and undefined

---
 .../editpropertysettings/editpropertysettings.controller.js     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Umbraco.Web.UI.Client/src/views/documenttype/dialogs/editpropertysettings/editpropertysettings.controller.js b/src/Umbraco.Web.UI.Client/src/views/documenttype/dialogs/editpropertysettings/editpropertysettings.controller.js
index 7eb530428e..2bbbd28cb1 100644
--- a/src/Umbraco.Web.UI.Client/src/views/documenttype/dialogs/editpropertysettings/editpropertysettings.controller.js
+++ b/src/Umbraco.Web.UI.Client/src/views/documenttype/dialogs/editpropertysettings/editpropertysettings.controller.js
@@ -49,7 +49,7 @@ function EditPropertySettingsController($scope, contentTypeResource) {
 
     function matchValidationType() {
 
-      if($scope.model.property.validation.pattern !== null) {
+      if($scope.model.property.validation.pattern !== null && $scope.model.property.validation.pattern !== "" && $scope.model.property.validation.pattern !== undefined) {
 
         var match = false;