In A (→GE1→FE→EE) there are no accidentals before the 6th and 10th notes of the roulade (in relation to a notation with an octave sign in Chopin's times, a possible sign was required only before the 6th note). Formally speaking, it should read b
2 and b3, yet in ascending passages Chopin would generally use altered interchangeable notes (cf. e.g. bars 87, 95, 143, 175-178, 247-248, 331-334 in this movement), which suggests a possibility of overlooking naturals resulting in b2 and b3. In the main text we give a version based on an assumption that Chopin's notation does not contain mistakes, adding a cautionary 
before b2.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Errors in GE, GE revisions
notation: Pitch