[CLIENT] Masteries selection screen shows masteries of the other person

While waiting for the next game, looking through another person mastery pages resulting their pages appearing as yours in champ select. However, when you try to select any of these pages - you get an error message and no mastery page is selected.

1. Queue up for a game
2. Visit other person mastery page
3. Wait there for a match
4. In champ select scrol through your mastery pages

I have tried this twice, and this has happened both times. Restarting client do not affect this bug.

Pictures:

• My masteries
• My firends masteries
• Bug demonstration

This is a known bug, here are related threads:

• Thread 1 (8 months ago)
• Thread 2 (4 months ago)
• Thread 3 (28 days ago)
• Thread 4 (12 days ago)

P.S. Sadly, there was no reaction on this one.