cpm_viewRandomMediaFromCategory and imagesize option

[rebolon]

Hi,

i tried to use cpm_viewRandomMediaFromCategory with the fourth parameters 'option'.

$objCpm = new cpmextends("./cpmfetch_config.php");
$aOption = array( 'imagesize'=>'int' ) ; // possible values are thumb/int/large
$aRes = $objCpm->cpm_viewRandomMediaFromCategory ( 1, 1, $_GET['catUID'], $aOption );

But it always return a full size image. Even if i try thumb.
I checked my albums directory and i saw all image in three version :
large -> IMG_3882.JPG
int -> normal_IMG_3882.JPG
thumb -> thumb_IMG3882.JPG

What did i miss ?