Authorized.net: Cannot add duplicate payment

Description

Steps to reproduce

1. Go to the backend and create a new order.
2. Click the payment tab and add Payment by phone.
3. Click Ok then the Save button.
4. Add another line item to the order.
5. Add 1 more payment 'Pay by credit card'.
6. Enter valid data for the authorized payment.
6. Click Ok then the Save button.
7. Repeat step 5,6 and 7 to create a third payment with the same payment data as the second one.

Expected: You can add a payment as normal.
Actual: You see a message
"A duplicate transaction has been submitted.. Error Code: 3. Error Type: provider-error. Messages: CSCResponse:Blank or not present = CAVV not validated ReasonCode:11 Subcode:1 AVSResult:AVS not applicable for this transaction"