[Client] Team Builder Mastery Page visual bug

I think I found a visual bug Team Builder when selecting my mastery page. When I first did this, I thought I could use the mastery page of anybody. Turns out its a visual bug and it only uses your own.

1. Get into team builder (solo or group)
2. Select any champ and skin combo and your position and role
3. Click on your mastery page and you should see that they are yours
4. Click on profile page and enter in another summoner's name
5. Click on their mastery page tab and any of their master pages
6. Click on the home icon at the top to bring you back to your lobby
7. You should now see all of their mastery page names instead of your own (even though they are your numbers)

I can get this to occur as many times as I want.

First picture is of my rune pages and the second is afterwards.