Massive bug with gangplank.

Despite this being out for multiple days, thankfully it seems like either I'm the only one to have noticed, unless others are keeping it under wraps. The double attack damage item on gp stacks with EVERY barrel he shoots, earning him 3 stacks from each ability usage. The first game I put it on him, I got 30 stacks over a fight. I'd expected this to blow up and get out of control, but thankfully noone really noticed. I contacted riot support on twitter about it and was told to put it here, so please let me know what happens! I don't want this to spread so I tried to keep it off of here, but given I was told to put it here anyways, what can ya do.