Merge pull request #27219 from woocommerce/fix/filter-quantity-in-add_to_cart_handler_grouped

Filter quantity in add_to_cart_handler_grouped

includes/class-wc-form-handler.php

@@ -826,6 +826,7 @@ class WC_Form_Handler {
 			$quantity_set = false;
 
 			foreach ( $items as $item => $quantity ) {
+				$quantity = wc_stock_amount( $quantity );
 				if ( $quantity <= 0 ) {
 					continue;
 				}