Ember.computed.oneWay issue

application.route.js

import Ember from 'ember';

export default Ember.Route.extend({
  model: function() {
    return {name: 'sam', age: 2};
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  modelCopy: Ember.computed.oneWay('model'),
  ageCopy: Ember.computed.oneWay('model.age')
});

templates.application.hbs

<br>
<br>
<h4> Using Ember.computed.oneWay on an object acts like Ember.computed.alias</h4>
<p>Original Model Name: {{model.name}}</p>
<p>Model Copy: {{modelCopy.name}}</p>
{{input value=modelCopy.name}}
<br>
<h4> Using Ember.computed.oneWay on a property doesn't allow local changes to reach original</h4>
<p>Original Model Age: {{model.age}}</p>
<p>Model Age Copy: {{ageCopy}}</p>
{{input value=ageCopy}}

twiddle.json

{
  "version": "0.4.0",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.5/ember.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/1.13.5/ember-data.js"
  }
}