The marks, added by Chopin probably in a proofreading of FE (→GE,EE), are certainly meant to be long accents and this is how we give them in the main text. In bar 2 the length of marks in GE and EE corresponds quite well with the size of Chopin's long accents, although most probably by accident.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Long accents, Authentic corrections of FE
notation: Articulation, Accents, Hairpins