When going thru the daily cards and misremembering one of them, it gets added to the failed list and will come up again in that same session. I observe that if by chance that card comes up right away again, then it is already unfolded (ie, you see the answer). I think that only happens when it is that same card that was just shown.

The bug is that it shows the reply. But one could also consider constraining the sampling in one session so that you dont ask the same card twice in a row. I dont mind that it sometimes does.