Block params named component bug

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  components: ['foo','bar','baz']
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<p>
	Bug with block params named `component`
  and trying to use it as an HTML attribute.
  Inspect the HTML elements for the `data-value` attribute.
</p>
<h4>each as |abc|</h4>
<ul>
	{{#each components as |abc|}}
  	<li>{{abc}}</li>
  {{/each}}
</ul>
<h4>each as |component|</h4>
<ul>
	{{#each components as |component|}}
  	<li>{{component}}</li>
  {{/each}}
</ul>
<h4>each as |component| <em>in attribute</em></h4>
<ul>
	{{#each components as |component index|}}
  	<li data-value="{{component}}">{{index}}</li>
  {{/each}}
</ul>

twiddle.json

{
  "version": "0.10.5",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "beta",
    "ember-data": "beta",
    "ember-template-compiler": "beta",
    "ember-testing": "beta"
  },
  "addons": {}
}