Just came across a case where, in hindsight I considered a question to be overly broad. ie., I'd prefer to argue that it should be closed as too broad instead of closing a lot of specific questions as dups.
How do I find out which questions have been asked so far that were closed as duplicates of this particular post? Bonus points if it also detects dups-of-dups as well (ie. C is closed as duplicate of B which is closed as dup of A)