title: MatDialogRef textarea scrolls to bottom
body: <p>I have an app where i use <code>MatDialogRef</code> to open a component as a dialog. </p>
  
  <p>The dialog shows a long text, but for some reason, the textarea scrolls to the bottom. 
  This does not happen when it's not a dynamically created component. </p>
  
  <p>Heres an example: <a href="https://stackblitz.com/edit/matdialogref-textarea-scroll-issue" rel="nofollow noreferrer">https://stackblitz.com/edit/matdialogref-textarea-scroll-issue</a></p>
  
  <p>I hope someone can explain whats happening and how to fix it, so the <code>textarea</code>  stays in the top of the scroll.</p>
  
  <p>Thanks in advance! </p>