title: How to prevent CKEditor replacing spaces with &nbsp;?
body: <p>I'm facing an issue with <a href="http://ckeditor.com/" rel="noreferrer">CKEditor 4</a>, I need to have an output without any html entity so I added <code>config.entities = false;</code> in my config, but some <code>&amp;nbsp;</code> appear when</p>
  
  <ul>
  <li>an inline tag is inserted: the space before is replaced with <code>&amp;nbsp;</code></li>
  <li>text is pasted: every space is replaced with <code>&amp;nbsp;</code> even with <code>config.forcePasteAsPlainText = true;</code></li>
  </ul>
  
  <p>You can check that on <a href="http://ckeditor.com/demo" rel="noreferrer">any demo</a> by typing</p>
  
  <blockquote>
    <p>test <em>test</em></p>
  </blockquote>
  
  <p>eg.</p>
  
  <p>Do you know how I can prevent this behaviour?</p>
  
  <p>Thanks!</p>