title: Smarty function return a smarty tag which is not interpreted
body: <p>I have create a custom function smarty for my CMS :</p>
  
  <pre><code>{$page-&gt;title|inter}
  </code></pre>
  
  <p>So, this tag, when it's interpreted, call my custom function <code>smarty_modifier_inter</code>, retrieve a html code, do some actions and then return it.</p>
  
  <p>In this html, I can have other smarty tag. But, I just see, if a function smarty return smarty code, this smarty code is not interpreted...</p>
  
  <p>So, I have on my page a tag like <code>{$page-&gt;title|inter}</code> not interpreted.</p>
  
  <p>Do you have any ideas? Thanks!</p>