Neither AsI nor A (→GE→FE1,EE,FESB) include an accidental to the 7th semiquaver. The F major chord underlying this place is, however, thanks to the C7 chords present directly both before and after it, temporarily the tonic, which requires the use of e2, and not e
2. This conclusion is also supported by bar 285 – in the orchestral version of this phrase all sources contain e2(3). The mistake, patent in this context, was, however, corrected only in the stage of proofreading FE2, probably at Chopin's request.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, GE revisions, Omission of current key accidentals, Authentic corrections of FE
notation: Pitch