In FE the tie to b was inaccurately reproduced, as a result of which it looks like a slur meant to combine d1 on the 3rd beat of b. 201 with b in b. 202. This is how it was understood in EE1, in which a slur clearly combines those two notes. The patent mistake was corrected in EE2 (→EE3).
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, Errors in FE, Tie or slur
notation: Rhythm