On the list of favorites in user profile, duplicate questions are shown with [on-hold] or [closed] instead of [duplicate].
(Actually, the question is a duplicate.)
This is confusing. Makes me wonder "what was wrong with that question?" and go try to fix it to prevent deletion.
This is different from now-completed bug report Profile page shows duplicates as "on hold" or "closed" because that one was a different section of user profile.