Mastery Page Bug in Champ Select

When in queue for a game if you view a friends profile and are in their mastery page upon accepting the queue your mastery pages will be theirs. When you select one to use or edit this error message appears. When the game starts your last used mastery page will be used.

1. Join a queue for a game
2. While in queue view a friends mastery page
3. Accept queue while on their mastery page
4. Not get to edit your masteries