The notation of this bar is an example of Gutmann's carelessness, who would sometimes put other signs and slurs more or less accurately, without controlling their actual compatibility both with [A] and the music sense. The slurs were partially repeated in GE1 and corrected only in GE2.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Inaccuracies in GE, GE revisions, Errors of GC
notation: Slurs