The mask from Hermes's own title rename matched on name text only and was never retired, so a moderator who renamed the thread away and later restored Hermes's title saw the prompt show the thread's opening name instead. Once a name other than Hermes's title has been observed the record is dropped; before Hermes's title is first seen, the replaced name is still tolerated because a cache that has not caught up with the edit reports it.
Fixes#131614
(cherry picked from commit 16e94c1648c7c81c5b69a3bc872e0ca08200aa22)