In AI, the accents over the chords in these bars are undoubtedly long and this is the notation we adopt to the main text. FE has short accents (only the third one could be possibly considered as long), which seems to be less convincing, as far as the music is concerned, and probably results from an incomplete understanding of [A]. The accents in the remaining editions were subject to further modifications, most probably accidental.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Long accents, Inaccuracies in GE, Inaccuracies in FE, EE inaccuracies
notation: Articulation, Accents, Hairpins