In A in bar 155 Chopin wrote flats only to d
1 in the R.H. and to d in the L.H. The remaining necessary accidentals were added in GE (→FE,EE,IE). In A in bar 156 there is only one 
to g2. The other necessary was added in EE1 (→EE2) and in the remaining editions.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Accidentals in different octaves, GE revisions, FE revisions, Inaccuracies in A, Errors repeated in GE,
notation: Pitch