toggleProperty bug?

components.comp-1.js

import Ember from 'ember';

export default Ember.Component.extend({
  prop1: false,
  hello: "Default text of comp-1",
  valueDidChange: Ember.computed('hello', function() {
 		return this.get('errorGame');
  }),
  valueWillChange: Ember.on('didInsertElement', function() {
    this.toggleProperty('prop1');
    console.log(this.get('hello'));
  }),
  _changeHello: function() {
    this.set('hello', 'Text set by comp-1');
    this.set('errorGame', false);
  }.on("init"),
  
  actions: {
    fistAction() {
    	this.set('hello', 'Text set by comp-4');
    },
    customAction1() {
      this.toggleProperty('prop1');
    }
  }
});

components.comp-2.js

import Ember from 'ember';

export default Ember.Component.extend({
  data: [],
  errorGame: 'yaar',
  
  _doSomeImportentStuff: function() {
    var data = [
      {name: 'Text set by comp-2', bool: false},
      {name: 'Text set by comp-2', bool: true}
  ];
    
    this.set('data', data);
  }.on("init")
});

controllers.check.js

import Ember from 'ember';

export default Ember.Controller.extend({
  
});

router.js

import Ember from 'ember';
import config from './config/environment';

var Router = Ember.Router.extend({
  location: config.locationType
});

Router.map(function() {
  this.route('check');
});

export default Router;

routes.check.js

import Ember from 'ember';

export default Ember.Route.extend({
  model(params) {
  	console.log(params);
  }
});

templates.application.hbs

{{comp-2}}

templates.check.hbs

{{btn}}
btn

templates.components.comp-1.hbs

<button {{action 'customAction1'}}>{{hello}}</button>
{{#link-to 'check'}}DAre!!!
{{/link-to}}
{{outlet}}
{{errorGame}}
<br>
<button {{action 'fistAction'}}>For fun</button>
<br>
{{valueDidChange}}

templates.components.comp-2.hbs

{{#each data as |d|}}
{{comp-1 hello=d.name prop1=d.bool errorGame=errorGame}}
{{/each}}

twiddle.json

{
  "version": "0.4.9",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.0.1/ember.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.0.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.0.0/ember-template-compiler.js"
  }
}