In the 2nd four-bar section Chopin wrote the accidentals less carefully. In A (→FE) there are no naturals before b2 in bar 5 and d3 in bars 7-8. These patent oversights were corrected in GE and EE (in EE3 the 
in bar 7 was not completed).
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Accidentals in different octaves, GE revisions, Errors of A
notation: Pitch