In FE (→EE1→EE2) a 
was placed before b
2, which is a mistake. Such a developed version, with a b2-d3 third, is conspicuous only when performing the piece with orchestra (d1 in the viola part), which may have contributed to the absence of a correction in EE1, generally carefully revised. In EE3 the before b2 was preserved; in addition, a second one was added, lowering d3 to d3.
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, Errors in FE, Errors repeated in EE
notation: Pitch