The missing accent in GE is most probably an oversight. One could have doubts whether the accent corresponds to Chopin's notation accurately – according to us, a short 
, mildly emphasisng the beginning of an ornamental figure, would be more suitable in this case. However, the notation of FE does not provide any grounds for such an interpretation, and thus, it remains anyone's guess.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in GE
notation: Articulation, Accents, Hairpins