title: will update from mercurial overwrite my changes?
body: <p>I use hg command to update a project from repository (mercurial repository).  </p>
  
  <pre><code>hg pull
  hg update
  </code></pre>
  
  <p>Problem is that from my last update, I modified some files for myself. Now the concern is updating from repository will overwrite my changes. How can I prevent that?</p>