Address is not updated after service calls

[tayeke]

I've had an issue creating some custom validation on my checkout process, because the update service does not update the instance of the class it is acting on. Near this line of code, can see that the flash notice is updated with errors, but the instance @address is still the instance of the address before the service is called.
https://github.com/spree/spree_legacy_frontend/blob/bf44b73278e0efe18806fd3d8d4b343b6efadcd4/app/controllers/spree/addresses_controller.rb#L26

I admit this could be intentional to support a clean state for the @address, but in my case I want the @address with errors, so I've had to make the call and update the reference manually for some reason.

call = update_service.call(address: @address, address_params: address_params)
@address = call.value
if call.success?