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Source:
p. 4, b. 41-52
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Prezentacja
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In A there are no accidentals before the 11th semiquaver (in both hands), as a result of which both here and two notes later one should read an a(1). Chopin's patent oversight was corrected in all editions.
A cautionary 
before the 12th semiquaver – g(1) – is written in A only in the R.H. This inaccuracy was also corrected in the editions.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Omissions to cancel alteration, GE revisions, Cautionary accidentals, Last key signature sign
notation: Pitch
Missing markers on sources:
A, Morch, FE1, FE2, FED, FEJ, FES, GE1, GE1a, GE2, EE1, EE2, EE3