Same as in bar 45, in GE1 the slur starts from the beginning of the bar, which is an erroneous interpretation of the too broad slur of GC. In addition, in GE1 the slur is led only to the b at the beginning of bar 48, which is a totally unjustified arbitrary decision of the engraver. GE2 (→GE3) re-established the notation of GC, compatible with the remaining sources.
Compare the passage in the sources »
category imprint: Graphic ambiguousness; Differences between sources
issues: GE revisions, Inaccuracies in GC
notation: Slurs