title: Linebreaks in TinyMCE editor show extra line on preview, not in code
body: <p>I'm using the BBCode plugin with TinyMCE and see that line breaks are not showing the same between the preview and the HTML code.</p>
  
  <p>I have the following lines in the editor window:</p>
  
  <pre><code>This is line one
  
  This is line three
  </code></pre>
  
  <p>Line two is empty. When I'm viewing this in HTML I get the following.</p>
  
  <pre><code>This is line one
  This is line three
  </code></pre>
  
  <p>Without the extra empty line.</p>
  
  <pre><code>tinyMCE.init({
      mode : "textareas",
      theme : "advanced",
      plugins : "bbcode",
      entity_encoding : "raw",
      remove_linebreaks : false,
      force_p_newlines : false,
      force_br_newlines : true,
      forced_root_block : ''
  });
  </code></pre>
  
  <p>What am I missing?</p>