title: Wordpress permalinkslug changed page to page__trashed
body: <p>A Wordpress site of mine seems to have changed some of my pages permalinks by adding __trashed after the slug. 
  Note that not all pages are affected, neither do other post types.</p>
  
  <p>Anyone might have seen the same problem &amp; a clue what might have caused it? I can remove it manualy, but it's kind of weird and I don't want it to happen again :)</p>
  
  <p>I'm using WP v 4.5.3 &amp; the plugins are up to date.</p>
  
  <p>plugins used:</p>
  
  <ul>
  <li>Bulletproof security</li>
  <li>comet cache (former zencache, former quick cache)</li>
  <li>Yoast SEO</li>
  <li>Mailpoet</li>
  <li>Captcha by BestWebSoft</li>
  <li>Event organiser</li>
  <li>ACF</li>
  </ul>