In FE the part of the quaver beam to the right of g
1 is slightly more tilted than the preceding section. It could mean that changes were being made in print, which would suggest a Chopinesuqe correction to the rhythm in this place. However, it is not certain, hence in the main text we keep the A version (GE). The FE version – most probably authentic – can be considered an equal variant. Such rhythmic variations are the most common type of rhythmic variants in Chopin's pieces.
EE basically repeated the FE version, yet the semiquaver was placed after the 3rd quaver of the L.H. triplet, contrary to the convention used by Chopin and kept in FE.
Compare the passage in the sources»
category imprint: Differences between sources
issues: EE revisions, Authentic corrections of FE, Dotted rhythms and triplets, Dotted or even rhythm
notation: Rhythm