[Cart] Shipping fees and transaction fees are not updated when editing the cart

[drummer83]

Description

If a customers proceeds to step 3 of the checkout and then decides to edit the cart, the shipping fee and transaction fee are displayed but not updated along with the line items. Since the customer had reached step 3 of the checkout already, all required information to update those fees should be available. However this update will only happen as soon as the customer proceeds to step 3 again.
This will probably affect other enterprise fees as well.

Expected Behavior

When updating the amount of items in the cart, the fees should be updated accordingly.

Actual Behaviour

Currently the

• shipping fee is removed from the cart after updating the amount of a line item.
• payment fee remains unchanged after updating the amount of a line item.

Steps to Reproduce

1. As enterprise user set up a shop with a payment method with transaction fee and a shipping method with shipping fee (both with flat percent calculator).
2. As customer put items in your cart and complete the checkout until step 3.
3. Click 'Edit' next to Order details to edit the cart.
4. Update the amount of a line item and observe the fees.

Animated Gif/Screenshot

Before editing:

After editing:

Workaround

Severity

bug-s4: it's annoying, but you can use it

Your Environment

• Version used:
• Browser name and version:
• Operating System and version (desktop or mobile):

Possible Fix