Description:
------------
$this->me in class "a" should not have 'cata' as a value.

Test script:
---------------
<?php
error_reporting(E_ALL);
ini_set('display_erros','on');
class a{
	public function bar(){
		echo $this->me;
	}
}

class b{
	function foo(){
		a::bar();
	}
}

$b=new b();
$b->me='cata';
$b->foo();

Expected result:
----------------
no echo or error thrown

Actual result:
--------------
cata