title: Error when videojs playlist is empty and I try to populate it again
body: <p>I'm using <a href="https://videojs.com/" rel="nofollow noreferrer">videojs</a> and <a href="https://github.com/brightcove/videojs-playlist" rel="nofollow noreferrer">videojs-playlist</a> and I allow the player to be updated dynamically. It's working well, until you remove all the playlist items and try to add one back in again. How can I prevent this from happening?</p>
  
  <blockquote>
    <p>VIDEOJS: ERROR: TypeError: "this.player_ is null, can't access property "playlist" of it"</p>
  </blockquote>