On the 2nd beat of the bar in AI, there are no naturals lowering f
to f and d1 to d1. Chopin's inaccuracy is proven by an analogy with b. 159, by the presence of d both in the D major key in b. 165 and F major key starting from the 2nd beat of b. 166 and, above all, by the presence of these naturals in all the remaining sources.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Accidentals in different octaves, Omission of current key accidentals
notation: Pitch