I tested this locally and it includes all feedback issues (with and without offers) in the "sponsoring" list, which is not desired.
Feedback issues should be visible on home page only if they're being sponsored.
Previous implementation took care of that - [issue_services.search_issues](https://github.com/freedomsponsors/www.freedomsponsors.org/blob/master/djangoproject/core/services/issue_services.py).
You think you could fix that here also?