One can doubt whether the A version (→GE→EE,IE) featuring g3 corresponds to Chopin's intention. The comparison with three analogous places, in which Chopin immediately introduces the key of the starting four-bar section (in bar 123 D minor, in bar 127 G minor and in bar 143 A
minor), suggests that in the discussed bar it was supposed to be E minor, hence g3. This was probably the reason why the reviser of FE added here a 
lowering g3 to g3. On the other hand, the harmonic context – the chords in the previous bar – is not identical in these four places, which undermines the hypothesis of strict analogy. In this situation, in the main text we leave the literal interpretation of the A version (→GE→EE,IE); at the same time, we consider the FE version, assuming that Chopin overlooked the (which is quite likely here), to be an equal variant. A similar situation is to be found in IV mov. of the Sonata – at the beginning of bar 154 there is a B major chord, whereas the key of B minor appears only in bar 155, in spite of the fact that in all similar places both bars open with identical minor chords. In that situation the harmonic sequence leading to the analysed chord is also clearly different than in the remaining similar situations.
Compare the passage in the sources»
category imprint: Differences between sources
issues: Omission of current key accidentals, Errors of A, FE revisions
notation: Pitch