Seeing friends champs

I've only done this once, it probably happened due to an Internet issue.

Anyways, I was looking at my friends profile, then I quickly went to mine and clicked on 'champions'. It took me a minute to realize that I could see all of his champs and masteries.

It's not that big of a deal, but a bug is a bug.

EDIT: It just happened again, I was looking at someone's profile, then I played a match. After the match I went to the champions tab and could see his champs