When interpreted literally, the A slur in the 2nd half of bar 91 starts from the semiquaver; the same applies to bar 93. Due to the notation of similar motifs in bars 98-99, we favour the interpretation adopted by the editions (cf. the similarly shifted slur over the dots in bar 41). The A version can be considered an equal variant.
Compare the passage in the sources »
category imprint: Graphic ambiguousness; Differences between sources
issues: Inaccuracies in GE, Inaccurate slurs in A
notation: Slurs