EEW
compare
Chopin added the accent either in [A] or only just in the last stage of proofreading FE1, which may be indicated by the absence of the mark in GE (unless it is an oversight by the engraver).
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
issues: Errors in GE, Authentic corrections of FE
notation: Articulation, Accents, Hairpins