Description:
------------
Function reset() returns false when using on Iterator or ArrayObject on PHP 7.4.0RC4, but returns value of first element of array on PHP 7.3.10 and below.

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

$iterator = new ArrayIterator([1, 2, 3]);

var_dump(reset($iterator));

Expected result:
----------------
int(1)

Actual result:
--------------
bool(false)