A
compare
b. 156-158
The slur in the R.H. in FE ends in bar 156. It is undoubtedly the editor's revision, as bar 156 opens a new line in FE, while in A it is in the middle of the stave, therefore, an accidental break of the started slur is out of the question.
Compare the passage in the sources »
category imprint: Differences between sources
issues: FE revisions
notation: Slurs