No pedalling on the 4th beat of the bar is most probably a result of Chopin's distraction – the notation of pedalling stops in A on the 
sign in the middle of the bar, perhaps due to lack of ink; after returning to writing, the composer could have been occupied with another issue. In a very similar context in bar 20, the pedalling – pedal on each beat of the bar – is written in the entire bar. The addition of 
in GE1 (→FE→EE) is probably a routine revision – it is hard to imagine that, when adding pedalling, Chopin would have overlooked the accented chord on the 4th beat of the bar. When removing the sign, the reviser of GE2 could have considered that it would be better to leave a general indication on the 3rd beat rather than to suggest no pedalling on the 4th one.
Compare the passage in the sources »
category imprint: Differences between sources
issues: GE revisions, No pedal release mark, Inaccuracies in A
notation: Pedalling
