Code completion does not work for identifiers conflicting with keywords

[dgrunwald]

SD-1544, originally created on 6/6/2009 19:03:47 by Daniel Grunwald

  class XmlnsCompletionItem : CodeCompletionItem
 {
  string @namespace, assembly;
 
  public XmlnsCompletionItem(string @namespace, string assembly)
  {
   this.|
  }
 }

Expected result:
code completion shows "@namespace" (or at least inserts the @ when
completing)

Actual result:
code completion shows and inserts "namespace".