Description:
------------
hello,

Classes A/B and C/D are identical, i just changed a default value from an 'int' to an 'array'.

See at the expected and actual results to understand the problem.



Reproduce code:
---------------
<?php
class A {

	protected static $plop = 42;

}

class B extends A {

	public function __construct() {
		self::$plop = 43;
		var_dump(self::$plop);
	}

}

new B;


class C {

	protected static $plop = array('42');
	
	public function __construct() {
		self::$plop = array('12');
	}

}

class D extends C {

	public function __construct() {
		parent::__construct();
		var_dump(self::$plop);
	}

}

new D;
?>

Expected result:
----------------
int(43)
array(1) { [0]=>  string(2) "43" }

Actual result:
--------------
int(43)
array(1) { [0]=>  string(2) "42" }