Description:
------------
Only look at the code and the output of it. I think, new 
objects in variables, which are already existent and 
contain an old object, should be call the destructor of 
the old object... im sorry for my english... 

Reproduce code:
---------------
<?php
class test {
	static $i = 0;
	
	public function __construct() {
		self::$i ++;
		echo "alive: " . self::$i . "<br />";
	}
	public function __destruct() {
		echo "dead" . self::$i . "<br />";
	}
}

$obj = new test;
$obj = new test;
?>

Expected result:
----------------
alive: 1 
dead1 
alive: 2 
dead2 

Actual result:
--------------
alive: 1 
alive: 2 
dead2 
dead2