Oy! Duplicate answer flag links are broken, on Stack Overflow at least:
Nothing clickable here.
Duplicate answers: <a href='/a/17872807'>17872807</a>
This has been fixed and the question links now have their titles in the text.
While we're at it, I'd like to see the post title (and not just an ID) be placed as the link text, as it will aid in making decisions from the queue; [so] gets a lot of dupe answer flags and just seeing the ID of the post doesn't do much in helping ascertain what to do with them.
This a specific form of Change text of links on Stack Exchange network from URL to post title in moderator queue but for this flag (figured might as well put this in if the whole thing is broken).