EE2
Main text
A - Autograph
FC - Fontana's copy
FE - French edition
FE1 - First French edition
FE2 - Corrected impression of FE1
FED - Dubois copy
FEJ - Jędrzejewicz Copy
FES - Stirling copy
FESch - Scherbatoff copy
GE - German edition
GE1 - First German edition
GE2 - Revised impression of GE1
GE3 - Corrected impression of GE2
EE - English edition
EE1 - First English edition
EE1a - Corrected impression of EE1
EE2 - Revised impression of EE1a
compare
  b. 75

In the 2nd half of the bar there are no accidentals before the 2nd and 4th bottom voice quavers in A (→FC,FEEE1). It must be an oversight of Chopin, who, in his mind, changed the key to D major as the notation of g turned to a. The necessary accidentals were added in GE and EE2; in turn, the incomplete notation was not problematic for the pupils, since none of the teaching copies contains annotations here.
The  visible in FC before the last quaver was added later. 

Compare the passage in the sources »

category imprint: Interpretations within context; Differences between sources

issues: EE revisions, GE revisions, Omission of current key accidentals, Errors of A, Errors repeated in FE

notation: Pitch

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Original in: Biblioteka Narodowego Instytutu Fryderyka Chopina, Warszawa