title: How to update time when git cherry pick
body: <ol>
  <li><p>Am I understanding correctly? When cherry pick a commit, the commit hash id and commit date will change, but <code>AuthorDate</code> remains the same as previous commit.</p></li>
  <li><p>If 1 is true, how can I update <code>AuthorDate</code> too when cherry pick?</p></li>
  </ol>