- From an administrator account on testwiki, block yourself
- Go to https://test.wikipedia.org/wiki/Special:AbuseFilter/6
Filter 6 is marked private, but it's still visible.
This is a problem because one of the most common reasons for an admin to be blocked (at least on enwiki) is that the account is compromised. It often takes time to find a steward to lock the account, and we don't want people exploring the private filters during the gap.