In A (→GC,FE1→FE2) there are no accidentals before the upper notes of the last two sixths, g
2 and b2. It is a typical inaccuracy of notation of Chopin, which does not result in any doubts in this context. Moreover, FE1 (→FE2) has no 
raising b
1 to b1. In FE3 both necessary naturals were added, the same notation also occurs in EE. Only GE has the correct text in this bar.
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category imprint: Interpretations within context; Differences between sources; Editorial revisions
issues: EE revisions, Errors in FE, Accidentals in different octaves, GE revisions, FE revisions, Inaccuracies in A
notation: Pitch