This question is an exact duplicate of:
A question gets a close vote as a possible duplicate of X, and the automatic comment shows up.
I then close vote it as a duplicate of Y, but my
"Possible duplicate of [...]" comment doesn't appear.
Is this expected behavior?
I want to test it thoroughly here (I might have just gotten mixed up): Formatting Sandbox
But that would mean flagging Formatting Sandbox as a duplicate of some random question - multiple times!
Is that OK?
Maybe it's a duplicate of 'Possible duplicate' comment not appearing for questions with deleted comments containing the link , but I am not if that's the same case.
Specifically, my question is:
Was there a different
"possible duplicate of.."comment already, when the user tried adding one?
If not, it might be a different bug.