Description:
------------
Private property of initialized class, is accessible from static version of the same class.

Reproduce code:
---------------
class FOO {
  private $bar = 0;
  private static $instance = false;
  public static function get_instance(){
    if(self::$instance === false) self::$instance = new FOO;
    return self::$instance;
  }
  public static function set_bar( $b ){
    $foo = FOO::get_instance();
    $foo->bar = $b;
  }
  public static function dump_bar(){
    $foo = FOO::get_instance();
    echo $foo->bar;
  }
}
FOO::set_bar( 1 );
FOO::dump_bar();
$foo = FOO::get_instance();
echo $foo->bar;

Expected result:
----------------
Fatal error: Cannot access private property FOO::$bar in /var/www/index.php on line 10

I should not be able to write to a private property from "outside". (Even thou it's the same code for both classes (static and initialized).)

Actual result:
--------------
1
Fatal error: Cannot access private property FOO::$bar in /var/www/index.php on line 20

Well, I can write to the private property and I can read it, from inside the static.
The error is when I try to access it from completely "outside". And that error is correct.

Same result for private and protected.