Pb with widget product chooser

[geraldcann]

When used with this widget adminhtml/catalog_product_widget_chooser, product selection is not shown above widget product chooser button ; whereas value is well set into hidden input.
Due to Magento implementation, product id is supposed to be first grid column
See app/code/core/Mage/Adminhtml/Block/Catalog/Product/Widget/Chooser.php and method getRowClickCallback() :
var productId = trElement.down("td").innerHTML;

So, adminhtml/catalog_product_widget_chooser had to be added to excluded grids