Dear Umbracians,

Running on a

win2k3

umbraco 4.0.2.1 - upgraded from a 306, I get the following error when saving a template:

---

Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date:  13-11-2009
Time:  11:37:59
User:  N/A
Computer: COMPUTER
Description:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 13-11-2009 11:37:59
Event time (UTC): 13-11-2009 10:37:59
Event ID: 9bf009aa2caf4db1b04afe9d8c3260d7
Event sequence: 18844
Event occurrence: 3
Event detail code: 0
 
Application information:
    Application domain: /LM/W3SVC/2141247161/ROOT-2-129025776735607833
    Trust level: Full
    Application Virtual Path: /
    Application Path: \application\path
    Machine name: MACHINENAME
 
Process information:
    Process ID: 6884
    Process name: w3wp.exe
    Account name: NT AUTHORITY\NETWORK SERVICE
 
Exception information:
    Exception type: ArgumentException
    Exception message: Item has already been added. Key in dictionary: 'beta.www.dk'  Key being added: 'beta.www.dk'
 
Request information:
    Request URL: http://www.oursite.dk/default.aspx?parameters=value
    Request path: /default.aspx
    User host address: xxx.x.x.xxx
    User: 
    Is authenticated: False
    Authentication Type: 
    Thread account name: NT AUTHORITY\NETWORK SERVICE
 
Thread information:
    Thread ID: 8
    Thread account name: NT AUTHORITY\NETWORK SERVICE
    Is impersonating: False
    Stack trace:    at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
   at System.Collections.Hashtable.Add(Object key, Object value)
   at umbraco.cms.businesslogic.template.Template.initTemplateAliases()
   at umbraco.cms.businesslogic.template.Template.GetTemplateIdFromAlias(String alias)
   at umbraco.page..ctor(XmlNode xmlNode)
   at umbraco.UmbracoDefault.Page_PreInit(Object sender, EventArgs e)
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at System.Web.UI.Page.OnPreInit(EventArgs e)
   at System.Web.UI.Page.PerformPreInit()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Custom event details:
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
---

The key in dictionary, here 'beta.www.dk' - is not the template being saved, but the first in the tree.

Does anyone know if this is a bug in reloading the template-tree - or could it be something regarding the upgrade ?