At the beginning of the bar, Chopin entered into A a cautionary 
to a
. GE (→FE,EE,IE) added a also to a2 in the R.H.
In the 2nd half of the bar the to g is missing in A. The accidental was added in GE (→FE,EE,IE), yet it was erroneously placed only just before the last quaver.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources; Editorial revisions
issues: Accidentals in different octaves, GE revisions, Cautionary accidentals, Inaccuracies in A, Errors repeated in GE, Errors repeated in FE, Errors repeated in EE, Errors repeated in IE
notation: Pitch