Try to remove this code by overriding it on "local"
if (isset($params['qty'])) {
$filter = new Zend_Filter_LocalizedToNormalized(
array('locale' => Mage::app()->getLocale()->getLocaleCode())
);
$params['qty'] = $filter->filter($params['qty']);
}
from app\code\core\Mage\Checkout\controllers\CartController.php (line 183)
Create to overrride app\code\local\Mage\Checkout\controllers\CartController.php
And remove this also by overriding it on "local"
if (isset($data['qty'])) {
$cartData[$index]['qty'] = $filter->filter(trim($data['qty']));
}
from app\code\core\Mage\Checkout\controllers\CartController.php (line 428)
Create to override app\code\local\Mage\Checkout\controllers\CartController.php
Also remove this by overriding it on "local"
if (isset($params['qty'])) {
$filter = new Zend_Filter_LocalizedToNormalized(
array('locale' => Mage::app()->getLocale()->getLocaleCode())
);
$params['qty'] = $filter->filter($params['qty']);
}
from app\code\core\Mage\Checkout\controllers\CartController.php (line 327)
Create to override app\code\local\Mage\Checkout\controllers\CartController.php