Description:
------------
When fetching with PDO::FETCH_ORI_ABS from MySQL with PDOStatement::fetch(), the 
driver silently swallows the options and work as if I passed PDO::FETCH_ORI_NEXT.

Test script:
---------------
$stmt = $pdo->prepare('SELECT * FROM table', array(
  PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL
));

$stmt->execute();

$row = $stmt->fetch(PDO::FETCH_NUM, PDO::FETCH_ORI_ABS, 5);

Expected result:
----------------
The sixth row returned.

Actual result:
--------------
The first row returned.