Payment log entries are not being saved for refunds

Apparently, refunding a payment is not creating a payment log entry when executed.

☝️ In this example, the order has been cancelled, and a payment have been automatically refunded with the credit method on the payment method/gateway. This is not attaching the log entry event to the payment.

As you can see, the refund that is correctly created for the order, is linked to the original payment, so there's no apparent reason not to link the credit log entry event to the payment:

Solidus Version: All

To Reproduce

First of all bundle exec rake sandbox and bin/rails s

1. Complete a payment on the frontend
2. Go to admin, capture the payment of the newly created order
3. Refund the payment.
4. No log entry event for the refund.

Current behavior

No log entry event logged on the original payment for its refund.

Expected behavior

A log entry event logged on the original payment for its refund.

Screenshots

See above.