title: TYPO3 8.7.x hide some tt_content fields
body: <p>Was solution for tt_content Overrrides here <a href="http://p.cweiske.de/243" rel="nofollow noreferrer">http://p.cweiske.de/243</a>, looks like</p>
  
  <pre><code>$GLOBALS['TCA']['tt_content']['columns']['date']['displayCond'] = 'FIELD:CType:!=:fluidcontent_content';
  </code></pre>
  
  <p>wich hide date or other fileds from tt_content in backend. In TYPO3 8.7.x this approach doesn't work anymore. I Checked displayCond still exist <a href="https://docs.typo3.org/typo3cms/TCAReference/Columns/Index.html#displaycond" rel="nofollow noreferrer">https://docs.typo3.org/typo3cms/TCAReference/Columns/Index.html#displaycond</a>. </p>
  
  <p>Seems to be a problem in <code>Overrides</code>. In my case it was just file <code>myext/Configuration/TCA/Overrides/tt_content.php</code>.</p>
  
  <p>Looks like system does not load this any more. Could somebody help?</p>