I recently got the $10^{th}$ upvote to this answer: Is there an elementary proof that $\sum \limits_{k=1}^n \frac1k$ is never an integer?

But got a notification for this answer: Is there a function with a removable discontinuity at every point?

There were no upvotes to the latter today.

Here is the image:

Seems like other folks have hit this bug too, as browsing on meta.stackoverflow.com shows, but posting here as the relevant repro data is on Math.SE.

EDIT: Someone downvoted the answer, so the number of votes is back to 9. The repro has been messed with :-)

Per