The 
sign in this bar in A is shorter than in the previous ones, which may be perhaps related simply to a different graphic layout (the quaver beam pointed upwards). In spite of that, in FE (→GE,EE) it was reproduced as a whole-bar sign, which almost certainly is a result of the engraver's distraction.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Inaccuracies in FE, Scope of dynamic hairpins
notation: Articulation, Accents, Hairpins