title: git update-index --assume-unchanged discrepancy in egit
body: <p>Here's the scenario:</p>
  
  <p>I have a git project open in eclipse + egit (the git plugin) with a resource file called samples.xml.</p>
  
  <p>I would like to remove samples.xml, but tell git to ignore the change. So I do the following:</p>
  
  <pre><code>rm samples.xml
  git update-index --assume-unchanged samples.xml
  </code></pre>
  
  <p>This works fine and dandy on the command line.  <code>git status</code> returns nothing.</p>
  
  <p>In egit, I would expect the same as well.  However, if I open the commit dialog, I get a line that reads <code>Assume unchanged | &lt;path_to_samples.xml&gt;</code>.</p>
  
  <p>Why would this happen?  If egit knows that it's assume unchanged, why does it still display in the commit dialog?  Is there a workaround for this?</p>
  
  <p>Thanks,</p>
  
  <p>Ken</p>