From the very beginning, the version of the 2nd crotchet reaching to b
1 seems to be associated with the "tenor" version of bars 21-24, present accordingly in the presentation autographs. However, Chopin was not entirely consistent, as in AI he used in bar 25 a narrower position of the L.H., which, in turn, could have been associated with playing G on the 3rd beat of the bar. In any case, in the sources there is not any juxtaposition of two wider positions in bars 24-25, practically resulting in a parallel shift of chords.
Compare the passage in the sources»
category imprint: Differences between sources; Corrections & alterations
issues: Chopin's hesitations, Accompaniment changes
notation: Pitch