v158: Temporary customer account created by paypalwpp not removed

[lat9]

If the PayPal Express Checkout payment-module is enabled, with its "Express Checkout Button" enabled and "Express Checkout: Automatic Account Creation" set to 'no', a temporary account is created for the customer when paying via a click on the PPEC button if they don't already have one. That account is supposed to be removed after order completion.

If the customer (for whatever reason) abandons the order, that account is still present in the store.

[lat9]

Noting that the supposedly temporary account isn't removed after a successful checkout, either.

[scottcwilson]

That account is supposed to be removed after order completion.

Is this documented (and are we sure it's not an error in the documentation)?

It seems like a change that would have limited benefit - are we sure we want to pursue?

[lat9]

It'll be confusing to the customer if they come back to create an account, since the email-address will be denied.

[drbyte]

One challenge is determining "how long does 'temporary' mean?"

Also, if the account is temporary, could we just exclude lookups in the Customer::doLoginLookupByEmail() function?