erroneous order updates after customer switches payment method

Use case:
1) Customer creates an order and selects BitPay to pay.
2) Customer doesn’t pay at BitPay and returns to the Woocommerce checkout page.
3) Customer selects another payment method and pays successfully
4) Other payment method updates the Woocommerce order
5) And then BitPay plugin erroneously updates the order status (e.g. when BitPay’s expired IPN comes in)

Expected:
The BitPay plugin should only update the Woocommerce order status when BitPay is still the selected payment method