Chopin entered into A an unnecessary 
to e2 in the 2nd L.H. chord in bar 289, and omitted this accidental to e in the R.H. in bar 292. Both defects were corrected in GE (→FE,EE,IE). Moreover, none of the sources include a to e2 in the 2nd half of bar 290, which results from a different rule regarding the validity of accidentals in the presence of an octave sign.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Accidentals in different octaves, GE revisions, Cautionary accidentals, Inaccuracies in A
notation: Pitch