* Fix - Strengthened back-end add-to-cart validation of variable composited product attributes. * Fix - Product Add-Ons prices added in string format.
* Fix - Escaped attributes in '/templates/composited-product/variable-product.php'. * Tweak - Reduced JS overhead when editing composite products with hundreds of Scenarios. * Tweak - Sortable attribute filters.
* Fix - Failing test when 'woocommerce_composited_product_has_bundled_weight' filter is in use.
