title: Query State Category
body: <p>I'm not able to get a query to work that will find all of my Work Item Types that are not in the 'Completed' state category.</p>
  
  <pre><code>Assigned To = @Me
  AND
  State:Not In Group:Completed
  </code></pre>
  
  <p>I expected that the query would only show me Work Items that have a state from a state category that is not, 'Completed.' In other words to show me all 'Work Items' that are assigned to me and still need to be worked on.</p>