Private room archived visibility in Gitter search

Goal: Ensure that once a Gitter room is marked as Private and subsequently archived, it remains completely hidden from global search results for all users, including those who have previously viewed the room.

Uncertainty: Documentation states that private rooms are excluded from search, yet observations show that archived private rooms can reappear in search if a user has accessed them before, suggesting that privacy settings may not propagate to the archived state or that the search index retains stale entries.

Specific questions:

• Does archiving a private room automatically exclude it from global search results?
• Is there a configuration option or API flag to enforce permanent search exclusion for archived private rooms?
• How can administrators verify that archived private rooms are not inadvertently exposed via search after index updates?