1-d
Chopin changed the original version (written in A) while proofreading FE (→GE1→GE2, →EE2→EE3). At the time of proofreading, the unnecessary 
before e1 in the 2nd half of the bar was left. This may have incited the reviser of GE3 (→GE4→GE5) to change e1 to e1 in the chord at the beginning of the bar (this totally arbitrary version was also repeated in EE4).
We add a cautionary 
before f1 on the 2nd semiquaver.
Compare the passage in the sources »
category imprint: Differences between sources; Editorial revisions
issues: EE revisions, GE revisions, Cautionary accidentals, Authentic corrections of FE
notation: Pitch
