title: Using Pipe with FormControlName in angular 7
body: <p>I have an angular 7 app. And I have a form like below. I create a pipe. And it's  working  perfectly. But, when I use by <code>formControlName</code> like below stackblitz, it give me error. How can I achieve this?</p>
  
  <p><a href="https://stackblitz.com/edit/angular-dwg9vp" rel="nofollow noreferrer">STACKBLITZ</a></p>