When a partner is moved from an access method to Bundle we do some processing in https://github.com/WikipediaLibrary/TWLight/blob/fe6369f1365ad8f53b630a009583ed3ba4811d7b/TWLight/users/signals.py#L72 to update authorizations accordingly.
When the partner is set to the waitlist status and is moved to Bundle, it creates duplicate Bundle authorizations for users. This shouldn't happen.
**Steps to reproduce this bug**
1. Create and approve two applications for different partners
2. Change both partners' status to `Waitlisted`or `Not Available` and authorization_method to `Bundle`
3. Change only one partner's status to `Available`
4. Log out of your account and then login again
5. A repeated bundle authorization appears and the partner is repeated in the My Library UI. The query below returns duplicates for the partner you just changed to `Available`:
```
SELECT users_authorization.user_id, users_authorization_partners.partner_id, COUNT(users_authorization_partners.partner_id) AS auth_count FROM users_authorization_partners INNER JOIN resources_partner ON users_authorization_partners.partner_id = resources_partner.id INNER JOIN users_authorization ON users_authorization_partners.authorization_id = users_authorization.id WHERE resources_partner.authorization_method = 3 GROUP BY users_authorization.user_id, users_authorization_partners.partner_id HAVING auth_count > 1;
```