Description:
------------
with the new Hashtable implementation..

follows script doesn't works as before:


anyway, I don't see a good way to fix it (using HashTableIterator is expensive here, and may introduce performance issue for later foreach calls)

I'd like add a test script, and mark it as XFAIL, linked to this entry.

Test script:
---------------
<?php
$a = array(1=>1, 3=>3, 5=>5, 7=>7);
$a = new ArrayObject($a);

foreach ($a as $k => $v) {
    var_dump("$k => $v");
    if ($k == 3) {
        $a['a'] = "?";
    }
}
?>

Expected result:
----------------
string(6) "1 => 1"
string(6) "3 => 3"
string(6) "5 => 5"
string(6) "7 => 7"
string(6) "a => ?"

Actual result:
--------------
string(6) "1 => 1"
string(6) "3 => 3"
PHP Notice:  main(): ArrayIterator::next(): Array was modified outside object and internal position is no longer valid in /tmp/1.php on line 5

Notice: main(): ArrayIterator::next(): Array was modified outside object and internal position is no longer valid in /tmp/1.php on line 5
string(6) "1 => 1"
string(6) "3 => 3"
string(6) "5 => 5"
string(6) "7 => 7"
string(6) "a => ?"