Forecast Janna Joke Bug

I just played a bot game with forecast Janna and every time I did a /Joke it would play her forecast skin exclusive joke and her regular Janna joke. My Lane partner could also hear both voices and it was a very weird thing I have never experienced before. This is the first time I have played Janna in a while so I am not sure how long it has been around or if you have heard of it before, but I thought I should report it. So I will just repeat that they both played at the same time over the top of each other. This didn't seem to happen to any of her other taunts/Laughs so I feel it is really weird.