In FE there are no flats restoring g
and g1 on the 5th quaver. As respective signs are before the 9th quaver (in all sources), the version, with g and g1 on the 5th quaver, formally does not contain a mistake. In spite of this, it seems to be much more likely that it is a mistake that happened to Chopin in [A] – in GC (→GE) the composer added the overlooked flats, the signs were also added in EE and FED, which, in both cases, may come from Chopin. Therefore, we are dealing with a too late placement of sign, which is not an isolated case – cf., e.g., the Etude in F major, Op. 10 No. 8, bar 43. In the main text, we do not include the superfluous flats in the 2nd half of the bar.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Annotations in teaching copies, EE revisions, Errors in FE, Annotations in FED, Omissions to cancel alteration, Authentic corrections in GC
notation: Pitch