If you add jump prep enough and click the jump button, then close the window without jumping, the 3 destination cards (one is hidden until you click Draw Third) are lost to the ether - they're not replaced in the deck OR discarded. If you click the jump button enough without jumping you will cycle through all of the destination cards and get an exception when Deck.RemoeRange(0, 3) fails.
If you add jump prep enough and click the jump button, then close the window without jumping, the 3 destination cards (one is hidden until you click Draw Third) are lost to the ether - they're not replaced in the deck OR discarded. If you click the jump button enough without jumping you will cycle through all of the destination cards and get an exception when Deck.RemoeRange(0, 3) fails.