Will a newly aquired XP boost overwrite an existing active XP boost? My specific situation is:
I have 1 day and 6 hours remaining on a 40% boost I got on a promotion, for buying credits.
I want to play the Winners Circle challenge.
If I win 2 hours of XP boost in the Winners Circle, will my existing XP boost of 1 day and 6 hours be cancelled and replaced with 2 hours of XP boost?
Thanks!