in bar 83 in 
A Chopin long accent in this bar is the longest out of the similar signs in the entire section encompassing bars 81-124. In spite of this, compared to subsequent, unequivocal accents in similar phrases, its accenting character is beyond doubt. Placing it at the end of the previous bar is undoubtedly a mistake of the engraver of GE1 (→FE→EE). In GE2, the sign was moved to the correct place, yet its exceptional length, interpreted literally, was preserved.
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category imprint: Differences between sources
issues: Long accents, Errors in GE, GE revisions
notation: Articulation, Accents, Hairpins