rollbackAttributes

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

application.route.js

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
  	return this.store.peekAll('item'); 
  }
});

application.template.hbs

<h1>Welcome to {{#link-to 'application'}}{{appName}}{{/link-to}}</h1>
<br>
<p>{{#link-to "my-route"}}Create Model{{/link-to}}</p>
<br>
{{model.length}}

{{outlet}}
<br>
<br>

models.item.js

import DS from 'ember-data';

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

my-route.controller.js

import Ember from 'ember';

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

my-route.route.js

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
		return this.store.createRecord('item', {
      	name: 'Tyler\'s Cardigan'
    });
  },
  
  resetController(controller, isExiting) {
  	if (isExiting) {
    	this.get('controller.model').rollbackAttributes(); 
    }
  }
});

my-route.template.hbs

{{model.name}}

router.js

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

const Router = Ember.Router.extend({
  location: 'none'
});

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

export default Router;

twiddle.json

{
  "version": "0.6.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "1.13.13",
    "ember-data": "1.13.15",
    "ember-template-compiler": "1.13.13"
  }
}