Differently than in analogous bar 426, there is no cautionary 
before b
in A (→GE1→FE→EE), yet there is a 
before e1, unnecessary in this context. In GE2, a was added to the . In the main text we give a more logical notation, used by Chopin in bar 426 as well as in two analogous places (bars 466 and 468).
The sources include a superfluous also before e3 in the R.H. Cf. bars 413-415.
Compare the passage in the sources »
category imprint: Differences between sources; Editorial revisions
issues: GE revisions, Cautionary accidentals, Last key signature sign
notation: Pitch