title: Docker save/load lose original image repository/name/tag
body: <p>I'm using Docker 1.12.6.</p>
  
  <p>I have pulled an image from the Docker registry.
  I have exported the images as tar files using the <code>docker save</code> command.</p>
  
  <p>I removed the original image and container and loaded the exported image using <code>docker load -i myImage.tar</code>.</p>
  
  <p>Now, when running <code>docker images</code> I notice my image have lost its repository/tag information:</p>
  
  <pre><code>    REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
  &lt;none&gt;              &lt;none&gt;              5fae4d4b9e02        8 weeks ago         581.3 MB
  </code></pre>
  
  <p>Why does it have this behavior and how do I keep the original image name?</p>