Go to Settings, somewhere there is a button to deactivate this feature! Its massivly -EV for u and WPN is geat in hiding this. I didnt even realised that there were Jokers in that deck.. When i was new to WPN i did this a couple of times, because i was naive and stupid and thought it was just a 50/50 flip, which, because of the jokes, isnt!
Also i did the color choise like 7-8 times, and was wrong every ****ing time, which let a tiny little bit in me delieve its rigged
tl;dr its massive -EV stop doing it!