Op. 2, Variations in B♭ major
Op. 10, 12 Etudes
Op. 11, Concerto in E minor
Op. 21, Concerto in F minor
Op. 22, Polonaise in E♭ major
Op. 24, 4 Mazurkas
Op. 25, 12 Etudes
Op. 26, 2 Polonaises
Op. 27, 2 Nocturnes
Op. 28, 24 Preludes
Op. 30, 4 Mazurkas
Op. 35, Sonata in B♭ minor
Op. 50, 3 Mazurkas
Op. 63, 3 Mazurkas
Op. 64, 3 Waltzes
Op. 11, Concerto in E minor, Mvt I
In this context, two identical octaves at the beginning of the bar, the slur of the sources is almost certainly inaccurate. It could have been the revisers or even Chopin himself that did not notice it due to the enharmonic change of B1-B to A1-A.
Compare the passage in the sources »
category imprint: Editorial revisions
issues: Inaccuracies in FE
notation: Slurs