One Way Input Bug

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  controllerValue: null,

  modelValue: Ember.computed.alias('model.modelValue'),
  
  clearObserver: Ember.observer('foo', function() {
  	this.set('controllerValue', null);
    this.set('model.modelValue', null);
    this.set('modelValue', null);
  }),
  
  actions: {
  	clearValues() {
    	this.set('controllerValue', null);
      this.set('model.modelValue', null);
      this.set('modelValue', null);
    },
    triggerObserver() {
    	this.set('foo', Math.random());
    }
  }
});

models.my-model.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  modelValue: attr('string')
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  
  model() {
  	return this.store.createRecord('my-model');
  }
  
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<table>
 <tr>
  <td>Controller Value:</td>
  <td>{{one-way-input value=controllerValue update=(action (mut controllerValue))}}</td>
 </tr>
 <tr>
  <td>Model Value:</td>
  <td>{{one-way-input value=model.modelValue update=(action (mut model.modelValue))}}</td>
 </tr>
 <tr>
  <td>Aliased Model Value:</td>
  <td>{{one-way-input value=modelValue update=(action (mut modelValue))}}</td>
 </tr>
</table>
<hr>
<button onclick={{action "clearValues"}}>Clear with action</button>
<br>
<button onclick={{action "triggerObserver"}}>Clear with observer</button>
<br>

twiddle.json

{
  "version": "0.8.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.3",
    "ember-template-compiler": "2.5.1"
  },
  "addons": {
  	"ember-one-way-controls": "0.8.0"
  }
}