title: Update SPList.Author in SharePoint
body: <p>A user who created various lists in SharePoint Server 2010 has subsequently been deleted from the site collection. This leaves the user id in the SPList.Author property but results in "User cannot be found" messages in various places that try to instantiate the SPUser object.</p>
  
  <p>Is there any supported way to update the SPList.Author property? I have tried with the server OM, Client OM and lists.asmx web service and have failed with all three.</p>