Description:
------------
Using: APC from Subversion (checked out on 2010-03-13, 
revision #296139) with PHP 5.3.1

I'm getting a fatal error when using late static binding 
features within a serialize() function for storing an object 
in a session.  I'm not familiar with the internals of this, 
so the fact that it's happening within the serialize() call 
may be irrelevant.

If I remove the APC extension from php.ini, I do not receive 
any errors-- the code behaves as expected.

I based this sample code on the following but, which I found 
while trying to troubleshoot this.

http://pecl.php.net/bugs/bug.php?id=16795

Reproduce code:
---------------
<?php

class One implements Serializable {
	protected static $var;

	public static function getVar() {
		return static::$var;
	}
	
	public function serialize() {
	    return serialize(array('var' => static::getVar()));
	}
	
	public function unserialize($str) {
	    $data = unserialize($str);
	}
}

class Two extends One {
	public static $var = 'two';
}

session_start();

var_dump($_SESSION);

$_SESSION['blah'] = new Two();


Expected result:
----------------
View #1: var_dump output empty, nothing else
View #2 and on: var_dump output should show simple dump of the 
Two object.

Actual result:
--------------
View #1: fine
View #2: fine
View #3: The following:

array(1) { ["blah"]=> object(Two)#1 (0) { } } 
Fatal error: Access to undeclared static property: Two::$var 
in /webroot/apc_test.php on line 7