Jar o Gems terrible BUG on it

Hello,

There is insane bug with Jar o Gems on battlegrounds.
It gives gems to enemy team… I had huge start on my bg and then i did a mistake, i chose Jar o Gems. First enemy i fought (much weaker army than i had) transformed a huge army with 800/800 all of them, because my Jar o Gems gave my +22/+16 gems to enemy team. Please fix!

Thank you in advance,

Post a replay please