While I was interacting with this question, I noticed that the author incorporated the comments to ask an equivalent question (instead of editing the original one).
Since I think that this constituted a duplicate, I flagged the equivalent question as duplicate and provided a link to the original question.
Now when I go to the comment section of the original question, there is a new comment under my name which I did not write, which roughly reads:
Does this answer your question? [link to equivalent question by same author]
I did not write this comment myself. It is a nonsensical comment, since the author should know about his second question anyways. So why did CV post this in my name and without notifying me?