(Or maybe the suggested edits interfere with the dupe link, I guess that also works.)

This is something I've seen happening a couple times, such as here.

When an edit is suggested before, and reviewed after the question is closed as a duplicate, the edit will appear to remove the "Possible Duplicate" box that is automatically added by Community.

This happens due to a clashing edit situation that is usually impossible — normal users can't suggest edits while another one is already pending, and those with edit rights are forced to approve or reject it first.

However, Community is highly rude and just performs the edit anyway.

  • 5
    Related; apparently closing a question used to dismiss edits, possibly for this reason.
    – a cat
    Commented Apr 27, 2012 at 13:03
  • 2
    It's that rude Community user again! Can we just ban him and get it over with? Commented Apr 28, 2012 at 7:43
  • Just noticed this as well. Also when the edit was not accepted yet, but you want to improve it, the duplicate link is removed as well.
    – Felix
    Commented Apr 30, 2012 at 11:40
  • This happened to me. I voted to close from a review queue (I think at this point the question had been flagged but had no close votes) then went back and edited (since editing from the close review would remove it from that queue) and then my edit was not as substantial as the "possible duplicate" that community added because I voted to close. If Community is going to do that, could it be a little quicker? Commented Dec 28, 2012 at 15:46
  • 3
    Duplicate links are no longer inserted as edits, so this shouldn't be a problem anymore.
    – Adam Lear StaffMod
    Commented Oct 4, 2013 at 1:48