cientific developers can concentrate on the scientific work.</li>

    <li>One issue is that the person doing the merge to the trunk may need help
    from the original developer to prepare a suitable log message.</li>
  </ul>

  <h3 id="branching_delete">When to Delete Branches</h3>

  <p>Once you are finished with your branch it is best to delete it to avoid
  cluttering up the directory tree (remember that the branch and all its
  history will still be available). There are two obvious approaches to
  de