Bard Charming and that XP

[Sizar]

So I think I have this correct but just wanted to confirm.

Lets say I'm charming for xp on my bard. I charm a mob and send it at another. My pet does say 60% of the damage right away to the mob while i am dotting it from a distance. Lets say I do 30% dmg, leaving the mob at a total of 10% health when my pet charm breaks. I now recharm the same pet to finish it off. So now I have done 30% damage and my pet has done 70%.

However, is it correct that when the charm breaks, all the damage it has done previously is forgotten? So now I get full XP because I have done 30% and it has done 10%?