So I noticed that masteries that I have fully mastered on one toon are getting carried over to other toons that don't have the masteries. I tested this by taking a toon with out any points assigned in to WvW and they could us the masteries from other toons.
Please fix it soon it provides an unfair advantage to ppl who have not put the time into WvW. If they have multiple toons they can master one mastery on each an get the bonus for all their toons.
If someone else would test this that would be awesome so that I know it is not just happening to me.