Today while I was reading this article, I found a bug.

You can see that the first comment in this article has two revisions:

First I changed it to Rev.1:

Then I changed it to Rev.2:

Yep, the like button disappeared, so I had to refresh the page. I tested it in Edge and Chrome and got the same result.

MikeMirzayanov could you please fix this bug? thx a lot!

(Sorry for my bad English)

Hey everyone. Recently, when I tried to access mirror.codeforces.com, it seemed to be down—it just returns an empty file to the download page. I asked my friends to check, and they had the same issue. How about you?