REST API v2 listSubscriptions and getSubscription return payment_method_id: 0 for subscriptions with valid payment methods

@Mark_Ginat Thank you very much for the detailed and thorough review, we really appreciate you taking the time to document the issue so clearly, including the impact and workaround.

I’ll report this internally so the team can look into the issue. I’ll keep you posted and share updates as soon as I have more information.

Thanks again for flagging this.