The longer slur of FE (→EE) is most probably a result of an erroneous interpretation of the slur reaching the end of bar 36 in [A]. Chopin would use this kind of tenuto slurs on numerous occasions. The supposition is confirmed in Chopin proofreading of FE3 in the corresponding place of the recapitulation – see bar 224.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Inaccuracies in FE, Tenuto slurs
notation: Slurs