In FE the R.H. version, which is significantly altered with respect to the remaining sources, must have been introduced by Chopin (the absence of visible traces of changes performed in print suggests that Chopin entered it already into the basis, that is a copy of GE1). As it is the last authentic version, we give it in the main text. We only add a 
hairpin in bar 338 – the mark is present in A, yet it was overlooked in GE, hence its absence in FE was not probably intended (in bar 337 Chopin included an analogous mark while proofreading FE1).
Compare the passage in the sources»
category imprint: Differences between sources; Corrections & alterations
issues: Accompaniment changes, Authentic corrections of FE
notation: Pitch