title: Changing "/" to "%2f" in URL doesn't work
body: <p>I have an orchard site and have the following problem: </p>
  
  <p>If I use the URL: <a href="http://asiahotelct.com/tours/ct---chau-%C4%91oc---ha-tien-3n2%C4%91" rel="noreferrer">http://asiahotelct.com/tours/ct---chau-%C4%91oc---ha-tien-3n2%C4%91</a>, it's okay. But when I change url the <code>/</code> to <code>%2f</code> (like so: <a href="http://asiahotelct.com/tours/ct---chau-%C4%91oc---ha-tien-3n2%C4%91" rel="noreferrer">http://asiahotelct.com/tours%2fct---chau-%C4%91oc---ha-tien-3n2%C4%91</a>), it no longer works.</p>
  
  <p>Why can <code>/</code> not be replaced by <code>%2f</code>?</p>