In a contest I entered previously, I submitted a guess as "21." in the comment.
I was asked if my guess was "1" which was what seem to be displayed.
I edited the comment and found it was still "21." but the comment was displaying as "1." only.
Turned out I didn't win that time but I could have lost for the wrong reason and that would have suck bad.
This video is the evidence that it is a reproducible bug.
Watch it on Viewly
If you enter a number followed by a "." and a space, you'll hit it.
Try it in this post if you don't believe.
Please see my other posts: @ace108
请看我其他帖: @ace108