Reporting another minor bug here - verified on www7 test portal. Check it out.
Here's what works: When a product has bundled accessories, and the user views their cart, then deletes that product, the accessories are correctly deleted too.
Here what does not work: When a product is bundled, and the user checks out, then decides that they don't want to pay and goes back to change the order, then deletes the product. The bundled accessories stay in the cart and cannot be deleted.
See attached picture taken from your www7 test portal.