javascript - Why does this binding only work for the first three times I change the value? -

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consider following snippet:

var items = ["item 1", "item 2"]    window.app = ember.application.create();  window.app.applicationcontroller = ember.controller.extend({      sitems: items,      svalue: items[0],      slabel: ember.computed('svalue', function() {          return this.get('svalue') == items[0] ?              "you picked item 1!" :              "you picked item 2!";      })  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <script src="http://builds.emberjs.com/tags/v1.13.5/ember.min.js"></script>  <script src="http://builds.emberjs.com/release/ember-template-compiler.js"></script>    <script type="text/x-handlebars">      {{view "select" content=sitems value=svalue}}      {{slabel}}  </script>

after changing value of <select> 3 times, no longer triggers changes svalue property. consequently, label no longer changes.

i have been able reproduce in chrome , safari on os x, ie11 on windows 8.1, , firefox , chromium on linux. (you should able reproduce running snippet above.)

what doing wrong?

edit: appears a known bug introduced in ember.js v1.13.4.

i believe have encountered bug "ember.select stops updating value property after couple of option changes, introduced in 1.13.4"


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