Owl Carousel 2 to.owl.carousel event problem

If you set 0 as transition speed when triggering to.owl.carousel event, it doesn't work

HTML

<link rel="stylesheet" href="//cdn.rawgit.com/smashingboxes/OwlCarousel2/2.0.0-beta.3/dist/assets/owl.carousel.css">
<link rel="stylesheet" href="//cdn.rawgit.com/smashingboxes/OwlCarousel2/2.0.0-beta.3/dist/assets/owl.theme.default.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="//cdn.rawgit.com/smashingboxes/OwlCarousel2/2.0.0-beta.3/dist/owl.carousel.js"></script>
<div class="owl-carousel owl-theme">
  <div class="item">
    <img src="http://placehold.it/350x150&text=1" />
  </div>
  <div class="item">
    <img src="http://placehold.it/350x150&text=2" />
  </div>
  <div class="item">
    <img src="http://placehold.it/350x150&text=3" />
  </div>
  <div class="item">
    <img src="http://placehold.it/350x150&text=4" />
  </div>
  <div class="item">
    <img src="http://placehold.it/350x150&text=5" />
  </div>
</div>

<div id="debug"></div>

</div>

CSS

BODY {
  background-color: white;
}

JavaScript

var carousel = $('.owl-carousel').owlCarousel({
  items: 1,
  margin: 10,
  nav: true,
  dots: false,
  loop: true,
	navSpeed: 1500,
  onChanged: function(event) {
  	
    $('#debug').html((event.item.index - (event.relatedTarget._clones.length / 2-1)) + '/' + event.item.count);
    
  },  
});