title: Design Sync won't revert local changes
body: <p>I am using the command</p>
  <pre><code>dssc pop -get -unify path_to_file
  </code></pre>
  <p>to locally modify a file and when i try to revert the changes with</p>
  <pre><code>dssc cancel -force path_to_file
  </code></pre>
  <p>I get an error &quot;Error: path_to_file - Object does not exist&quot;</p>
  <p>Same issue exists without -force flag</p>