Thanks to muscle memory, I reopened and closed to change the duplicate link [here](https://stackoverflow.com/questions/42588300/repeated-first-occurence-of-an-element). However, in hindsight, I probably did the right thing.

The user who originally marked the question as a duplicate posted a comment explaining how the question is a duplicate of the link that they chose. I then reopened the question and marked it as a duplicate of another question; my answer to that question clearly debunks what the other user said in the comments. Had I edited the duplicate link in-place, their comment would no longer make sense, unless I followed up with another comment saying I changed it (since, realistically, the revision history isn't going to be the *first* place most people will think of looking in situations like this).

It would be nice if editing duplicate links in-place also modified the "marked as duplicate" notice on the question page, but as I understand if it is not feasible.