title: TensorFlow - Invalid argument: Reshape:0 is both fed and fetched
body: <p>Is there a way to both feed and fetch the same variable in Tensorflow? If not, why is this not allowed?</p>
  
  <p>I'm getting this error:</p>
  
  
  
  <pre><code>StatusNotOK: Invalid argument: Reshape:0 is both fed and fetched.
  </code></pre>