Description:
------------
After using same name in first and third foreach script returns wrong result.
Last element is changed to one just before it.
As we can see it only happens if name of reference and variable used later in 
foreach is the same("product"). What is worse it affects every next iteration. 
After that it doesn't matter what is the name of helper variable.

Problem affects PHP versions: 5.2, 5.3 and 5.4 at least.
Different compilations by different people and companies.


Possibly related to: https://bugs.php.net/bug.php?id=60450&edit=2

Test script:
---------------
$products = array(
    array('id'=>1,'name'=>'Cheese'),
    array('id'=>2,'name'=>'Cake'),
    array('id'=>3,'name'=>'Fish'),
    array('id'=>4,'name'=>'Soup'),
    array('id'=>5,'name'=>'Pasta'),
);

$i = 0;
foreach($products as &$product) {
    $product['name'] = $product['name'].$i;
    $i++;
}

foreach($products as $p) {
    echo $p['name'];
    echo "\n";
}

echo "\n";

foreach($products as $product) {
    echo $product['name'];
    echo "\n";
}

echo "\n";

foreach($products as $p) {
    echo $p['name'];
    echo "\n";
}


Expected result:
----------------
Cheese0
Cake1
Fish2
Soup3
Pasta4

Cheese0
Cake1
Fish2
Soup3
Pasta4

Cheese0
Cake1
Fish2
Soup3
Pasta4

Actual result:
--------------
Cheese0
Cake1
Fish2
Soup3
Pasta4

Cheese0
Cake1
Fish2
Soup3
Soup3

Cheese0
Cake1
Fish2
Soup3
Soup3