The accent visible in FE (→GE,EE) should be rather interpreted as a short one, yet in FE even shorter signs were used, e.g., in the Etude in C major, No. 1, bars 1-2. Also the sign put in Ap (next to 
) resembles more an ordinary short accent. However, the long accents written by Chopin in FEcor in analogous bars 12 and 39 clearly indicate Chopin's intention concerning the type of accent he wanted to use.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Long accents
notation: Articulation, Accents, Hairpins