EE unified the font of the accents in these bars, by arbitrarily changing two long accents in bar 142 and the vertical accent in bar 143 to common, short accents. It is particularly strange in the case of the vertical accent, since it was the signs with which EE would eagerly replace Chopin short or long accents.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Long accents, EE revisions
notation: Articulation, Accents, Hairpins