The sources are missing some of the flats before g
notes (in various octaves). None of these inaccuracies raise any doubt concerning the sound intended by Chopin. In AI there are no before g, as well as before G and g1 in bar 23. In A both flats in the L.H. in the 2nd half of bar 22 are missing; only the first of them was added in FE. The remaining sources have the correct text.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Accidentals in different octaves, Inaccuracies in FE, GE revisions, Omission of current key accidentals, Authentic corrections of FE, Inaccuracies in A
notation: Pitch