The distinct staccato mark at the beginning of bar 5 in A, and the identical context of motives in the 2nd halves of bars 4-5 allow us to regard the lack of a similar mark in bar 6 as an inaccuracy. Omission of the mark in bar 5 in GE1 (→FE→EE) is certainly a result of distraction of the engraver. GE2 corrected the mistake adding a corresponding mark in bar 6. It also supplemented the L.H. part with dots, presumably because of the R.H. part being transferred to the upper staff (in the original layout the marks over the R.H. pertain to the L.H. as well).
Compare the passage in the sources»
category imprint: Differences between sources
issues: Errors in GE, GE revisions
notation: Articulation, Accents, Hairpins