Description:
------------
I like FETCH_CLASS being able to put stuff in protected properties, but why can't FETCH_INTO do the same (for $this)?

Test script:
---------------
<?php

class User
{
    protected $id;

    public static function get()
    {
        global $db;
        
		$q = $db->query("SELECT * FROM User WHERE `id` = 1");
		$q->setFetchMode(PDO::FETCH_CLASS, 'User');

		return $q->fetch();
    }

    public function load()
    {
		global $db;

		$q = $db->query("SELECT * FROM User WHERE `id` = 1");
        $q->setFetchMode(PDO::FETCH_INTO, $this);

		return $q->fetch();
    }
}

$db = new PDO('sqlite::memory:');
$db->exec("CREATE TABLE User(id INTEGER PRIMARY KEY, name TEXT)");
$db->query("INSERT INTO User VALUES(1, 'test')");

// worko
var_dump(User::get());

// no-worko
$user = new User;
var_dump($user->load());

Expected result:
----------------
Both var_dumps should return the same object

Actual result:
--------------
object(User)#3 (2) {
  ["id":protected]=>
  string(1) "1"
  ["name"]=>
  string(4) "test"
}

Fatal error: Cannot access protected property User::$id in /in/DCjXc on line 24

Process exited with code 255.