Description:
------------
When using PDO::FETCH_CLASS it incorrectly returns PDO::FETCH_BOTH. In other words instead of returning objects it is returning a mixed array.

The below code worked in 5.2.3 but when upgrading to 5.2.4 this occured.

Reproduce code:
---------------
http://pastemonkey.org/paste/470883a5-8d1c-4256-a59d-27b2404fdb0d

Expected result:
----------------
Array(
  [0] => Object(
    id =>
    hidden =>
    featured =>
    title =>
    clientName =>
    teaser =>
    content =>
    imgUrl =>
    publishedBy =>
    dateCreated =>
    dateModified =>
  )
 ...
)

Actual result:
--------------
Array
(
    [0] => Array
        (
            [id] => 
            [0] => 
            [hidden] => 
            [1] => 
            [featured] => 
            [2] =>
            [title] => 
            [3] => 
            [clientName] => 
            [4] => 
            [teaser] => 
            [5] => 
            [content] =>  
            [6] => 
            [imgUrl] => 
            [7] => 
            [publishedBy] => 
            [8] => 
            [dateCreated] => 
            [9] => 
            [dateModified] => 
            [10] => 
        )
  ...
)