Stripe Pro-Form (Missing State/Province on 100% Coupon)

[jaswrks]

Steps to reproduce:

• Configure a Stripe Pro-Form for Level 1 access.
• Configure a Pro-Form Coupon Code that provides 100% off.
• Configure at least one tax rate for Stripe Pro-Forms.
• Attempt to complete checkout using the 100% off coupon code.

Referencing: https://websharks.zendesk.com/agent/tickets/5895

Observed behavior: Error, Missing State/Province

Expected behavior: The validation routine should bypass the check for State/Province and Zipcode, since there is no money being transacted whatsoever in this scenario.

[jaswrks]

Next Release Changelog:

• (s2Member Pro) Stripe Bug Fix: This release fixes a bug in Stripe Pro-Forms where upon a customer applying a 100%-off coupon code, the customer is met with an erroneous error regarding a missing state/zipcode--and only when a site owner has defined a tax configuration file also. Fixed in this release. See also this GitHub issue if you'd like additional details.