CB Paid Subscriptions

When asked to subscribe on next login attempt and the login being blocked due to expired subscription if there is a free plan available to the user with "Propose plan for upgrades only if it is more expensive" correctly set to "No" the free plan never displays. This can be reproduced with the following.

1. Create 1 paid plan
2. Create 1 free plan and set "Propose plan for upgrades only if it is more expensive" to "No".
3. Subscribe to paid plan
4. Renew paid plan in advance
5. Edit the subscription and set the expiration date to into the past
6. Attempt to login

On the page to resubscribe the free plan won't be there as an available upgrade.

https://www.joomlapolis.com/forum/255-developer-members-support/244059-cbsubs-how-to-back-to-free-plan-after-renewing-paid-plan#325374