The sign written by Chopin in A is in this context undoubtedly a reversed sign of long accent. Such signs are not very frequent in Chopin's autographs, yet they are always present next to a second (usually semi-tone) step upwards – introducing an expressively important note. The accent was correctly reproduced by the engraver of FE (→GE1). In GE2 (→GE3→GE4→GE5) the reviser included a common short accent, whereas in EE the sign was totally overlooked.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in EE, GE revisions
notation: Articulation, Accents, Hairpins