We consider the missing 
mark in FE to be an inaccuracy, perhaps by Chopin, since the same version is to be seen in bar 52. In the main text we suggest a before the 3rd crotchet, after the markings of FE in bars 17-18; this is how the notation of FE was supplemented in EE. The mark in FC is most probably written too late, although in this case the harmonic sequence does not rule out such pedalling.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Inaccuracies in FE, No pedal release mark, Inaccuracies in FC
notation: Pedalling