IE1
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The earlier starting point of the slur in GE (→FE,IE) is either a routine revision, adjusting a slur to a rhythmic group (in this case a bar), or an inaccuracy. The EE version could have resulted from a misinterpretation of the GE slur, and its compliance with the A notation is almost certainly accidental.
Compare the passage in the sources »
category imprint: Differences between sources
issues: GE revisions, EE inaccuracies
notation: Slurs