In A the slur in bar 234, last on a page, clearly suggests that it should be continued, yet there is no ending thereof on the following page. The fact that Chopin indeed wanted to lead the slur to the beginning of bar 235 is confirmed by the slur (consistent in all sources) in analogous bars 154-155. The FE slur (→EE1) suggests that Fontana did not lead the slur to bar 235 in [FC]. In EE2 the slur was deleted, most probably after the GE version, in which the A slur was overlooked.
Compare the passage in the sources»
category imprint: Differences between sources
issues: EE revisions, Inaccurate slurs in A, Errors in GE, Uncertain slur continuation
notation: Slurs