FE1
compare
In FE there is no 
augmenting b
to b. This is obvious inaccurracy in Chopin's notation, as when he wrote this bar in [A2] he was convinced that the change of key signatures had already taken place.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in FE, Omission of current key accidentals
notation: Pitch