nt other users from modifying a file while you are
  preparing changes. For details please refer to the chapter <a href=
  "http://svnbook.red-bean.com/en/1.4/svn.advanced.locking.html">Locking</a>
  from the Subversion book. Note that:</p>

  <ul>
    <li>FCM does not add any functionality to the locking commands provided by
    Subversion.</li>

    <li>If you need to lock a file you must do this in a working copy of the
    trunk. There is nothing to stop you preparing the changes in a branch
    (maybe 