Timeout property has no effect about jquery-pjax

[SilverFire]

Basic app template:

SiteController.php

diff --git a/controllers/SiteController.php b/controllers/SiteController.php
index 33f6227..4c497a8 100644
--- a/controllers/SiteController.php
+++ b/controllers/SiteController.php
@@ -95,6 +95,12 @@ class SiteController extends Controller
         ]);
     }

+    public function actionSleep()
+    {
+        sleep(3);
+        return $this->renderAjax('about');
+    }
+
     public function actionAbout()
     {
         return $this->render('about');

view about.php

diff --git a/views/site/about.php b/views/site/about.php
index 752342c..18220b9 100644
--- a/views/site/about.php
+++ b/views/site/about.php
@@ -17,4 +17,8 @@ $this->params['breadcrumbs'][] = $this->title;
     <?= Yii::t('app', 'ru-RU тест') ?>

     <code><?= __FILE__ ?></code>
+
+    <?php \yii\widgets\Pjax::begin(['timeout' => 3000]); ?>
+        <a href="/site/sleep">click</a>
+    <?php \yii\widgets\Pjax::end(); ?>
 </div>

This code works as expected: clicking on link triggers PJAX request, the client side waits 3 seconds waiting for the response, then navigates to /site/sleep URL with full page reload.
When I decrease sleep time in the controller action, PJAX loads the response without page reload.

How to reproduce the problem?

[matperez]

Sorry. It's my fault.

I've used $.pjax.reload to reload the container. Apparently it uses the default timeout value.