In EE, GC and FE the fourth quaver is notated as a. The presence of 'a' notes as the ones comprising the chords in the previous and following bars indicates erroneous omissions of sharps by Chopin. And so the spot was corrected in GE accordingly.
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category imprint: Differences between sources
issues: Errors in FE, Errors in EE, GE revisions, Errors of GC
notation: Pitch