I can disable users but cannot delete them. This is the error message in the logs:
```2023-04-03 17:42:20,011 WARN [http-nio-8090-exec-21] [confluence.impl.hibernate.ConfluenceHibernateTransactionManager] doRollback Performing rollback. Transactions:\n ->[null]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT (Session #176540017)
-- url: /admin/users/removeuser-confirm.action | userName: admin | action: removeuser-confirm | referer: https://wiki.example.com/admin/users/removeuser.action?username=john%2Bdoe | traceId: a0a9453cd07c9f90
```
This was happening with 8.0 so we upgraded to 8.2 to try and fix it but the error continues.
Any advice? We need to delete users so we can migrate to Confluence Cloud.