Description:
------------
---
From manual page: http://www.php.net/imagick.clone
---

One user reported that clone() is deprecated and that the clone keyword should be 
used instead as of 3.1.0.

However, when using the clone keyword you actually get an exception thrown 
stating that you are trying to clone an unclonable object. The fix is to use the 
clone method of the Imagick class instead of the clone keyword.

The user comment should be removed and, if necessary, replaced with accurate 
information on when the clone() method was deprecated, when/if it will be 
removed, and when/if the clone keyword will ever work in the future.

Test script:
---------------
<?php

$image = new Imagick();

$clonedImage = $image->clone(); // Works

$anotherClonedImage = clone $image; // Throws an exception