Search type=support returns zero after the rename to question
Bookmarks and saved searches still use topic_type=support. The API should canonicalize aliases.
Confirm the list cache key uses the canonical id so we do not serve mixed pages for 20 seconds.

Fix landed in
v2.9.1.Closing Search type=support returns zero after the rename to question as fixed. Reopen if Valkey still serves a mixed page.