Mastery Bug

When I logged in for the first time today, I opened a friend's profile page. Abnormally, I was able to see his league information (normally it shows mine even when I'm on somebody else's page).

So, then I loaded up a game. The pop-up list of names for my runes were right, but my masteries were his! I clicked on the edit button beside the masteries to make sure I had the one I wanted and it loaded my mastery pages. I went out and the pop-up list now showed my mastery list.

Not a major problem, but thought i would point it out. I have a screen shot of before and after, but don't know how to upload it to this post.