Normally it doesn't happen with memory lapse (luckily that means the consequence would not be terrible). It happens mostly due to short of concentration. I confess that sometimes I also worried about certain crucial shifts in live recitals, when I had noticed the pianist was less than 70% in state >.< (oh the poor little heart of mine...
Now, on my own experience, the risk also exists in playing the exposition repeat like the recapitulation. E.g.
The main shift is in green mark, whose correspondence you can find in the end of the next image. But generally it is SAFE enough all the green marked content below in the recapitulation, because there are many new elements which are impossible to confuse or forget. And on the last shifting chord, one normally gets very careful with it. However, the orange marked one may cause more mishaps, specially when playing the exposition repeat, I sometimes realized having put the left hand on the wrong place and had to change it as quickly as possible before hitting down.
So I also agree to observe the topic inversely, the recapitulation influences on the exposition. And more, if we always play from memory pieces we take for granted for a long time, sometimes we don't find the secret modifications our memory might have made. Like to play, still in the exposition, single notes in double octaves, or octave chords into broken chords, recapitulation ornaments when there is still their moment. I mean, they are insignificant differences, comparing to the recapitulation shift, even it is a given freedom to the performer, who has total rights to defend these details as "personal ornaments". Anyway, the exposition and its repeat generally mean no risk even they suffer minor modifications.
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