Description:
------------
PHP version 5.6.22 from PHP 5.6.22-2+donate.sury.org~trusty+1

When array is firstly iterated by reference for $value, and then iterated without reference, last $value in second foreach is incorrect.



Test script:
---------------
$arr = [1, 2];

foreach ($arr as &$value) {}

foreach ($arr as $value) {
    echo "$value\n";
}


Expected result:
----------------
1
2

Actual result:
--------------
1
1