[Payment apps] What should be the user experience when an app is recommended for two methods?

[LaurentCastillo]

It can happen that a payment app will be recommended for two or more methods, both supported by the merchant. What should the UX be in that case:

• Display app twice, with a different method each time?
• Display it only once?
• Anything else?

[adrianhopebailie]

Migrated to https://github.com/w3c/webpayments-payment-apps-api/issues/11