The accent in this bar can be found in EE - a short one - and in GC (→GE) – a long one. Actually, when considering the notation of just that single page in GC, one could have doubts as to the length of that accent - our interpretation is based on comparisons with analogous bars. The absence of the accent from FE is probably an error (cf. bar 33).
Compare the passage in the sources »
category imprint: Differences between sources
issues: Long accents, Errors in FE
notation: Articulation, Accents, Hairpins