Description:
------------
PHP makes a memory leak in case if script throws exception from inside __clone() method.

Reproduce code:
---------------
<?php
class Foo {
	function __clone() {
		throw new Exception();
	}
}
try {
	$x = new Foo();
	$y = clone $x;
} catch (Exception $e) {
}
echo "ok\n";
?>

Expected result:
----------------
ok

Actual result:
--------------
ok
[Thu Jul 27 14:21:47 2006]  Script:  'x.php'
/home/dmitry/php/php5.2/Zend/zend_vm_execute.h(19949) :  Freeing 0xB7ECBFF8 (16 bytes), script=x.php
=== Total 1 memory leaks detected ===