false,null,undefined are treated as same qp values

controllers.application.js

import Ember from 'ember';

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

});

controllers.my-route.js

import Ember from 'ember';

export default Ember.Controller.extend({
  queryParams: ['apple'],
  apple: ''
});

router.js

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

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

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

export default Router;

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
	beforeModel() {
		console.log('asdf');
  },
	actions: {
		didTransition() {
			console.log('asdfasd');
			this.replaceWith({queryParams: { apple: null } });
    }
	}
});

routes.my-route.js

import Ember from 'ember';

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

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{link-to 'visit my-route with apple=null as qp' 'my-route' (query-params apple=true)}}
{{outlet}}
<br>
<br>

templates.my-route.hbs

<hr>
value of apple => {{apple}}

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "release",
    "ember-template-compiler": "release",
    "ember-testing": "release"
  },
  "addons": {}
}