title: How can I change ng-select's items with directive?
body: <p>I think I am missing something very basic, please forgive me for that but I really can't find the problem.</p>
  
  <p>I just want to set ng-select's parameters (including items) with a directive. It's working on some static properties like clearAllText, but I can't use my directive to change items.</p>
  
  <p>Here is sample: <a href="https://stackblitz.com/edit/ng-select-tests-share" rel="nofollow noreferrer">https://stackblitz.com/edit/ng-select-tests-share</a></p>