dropping your PL doesn't confirm

if i turn myself from admin to normal user in a room it is irreversible and can render the room unmoderatable, but there is no confirmation

Reproduce the issue by changing yourself from an admin to a normal user in a room. Trace the iOS room-role change flow and identify where an irreversible action can request confirmation. Done means the user is warned and must confirm before dropping their power level.

Written by the indexing model from the issue text.