From 0292ca9bf3ed88de1044ff42e0cdfcd6530b4436 Mon Sep 17 00:00:00 2001
From: Morten Christensen <unknown@kiln.example.com>
Date: Fri, 18 Jan 2013 11:18:19 -0100
Subject: [PATCH] Fixes issue with duplicated tags on inherited doc types.

---
 src/umbraco.cms/businesslogic/ContentType.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/umbraco.cms/businesslogic/ContentType.cs b/src/umbraco.cms/businesslogic/ContentType.cs
index 59652b27a2..f0ee6bf8f7 100644
--- a/src/umbraco.cms/businesslogic/ContentType.cs
+++ b/src/umbraco.cms/businesslogic/ContentType.cs
@@ -1224,7 +1224,7 @@ namespace umbraco.cms.businesslogic
             temporaryList.Sort((a, b) => a.SortOrder.CompareTo(b.SortOrder));
 
             // now that we aren't going to modify the list, we can set it to the class-scoped variable.
-            m_VirtualTabs = temporaryList;
+            m_VirtualTabs = temporaryList.DistinctBy(x => x.Id).ToList();
         }
 
         private void populateMasterContentTypes(PropertyType pt, int docTypeId)