e3 as the highest note in this bar is probably Chopin's mistake in A, relatively common in the autographs of his works (cf. very similar situation in bar 24). In any case, while proofreading FE (→GE,EE), Chopin changed it to g3.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Terzverschreibung error, Errors in the number of ledger lines, Errors of A, Authentic corrections of FE
notation: Pitch