The slur of A, when interpreted literally, seems to start from the beginning of the bar and this is how it was reproduced in the editions. However, both the previous slur, led to the beginning of this bar, and con duolo placed only over the second crotchet suggest that the new musical thought should begin just from the second crotchet. The intuition is confirmed by the Chopin entry in FED, in which the ending of the slur added over the roulade in bar 148 clearly separates the g1 crotchet from the further course of music.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Annotations in teaching copies, Annotations in FED, Inaccurate slurs in A
notation: Slurs