The 
asterisk is placed in A before the 4th beat of the bar, while in GE even further (under the 4th beat). According to us, it is an inaccuracy of notation, hence in the main text we suggest a pedal change along with a chord change on the 3rd beat of the bar, as marked by Chopin in analogous places. The absence of the mark in FE most probably means that Chopin either did not notice the absence of a or ignored it while proofreading FE2 (cf. the note on bars 2-17). The mark added by EE cannot be authentic.
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, Inaccuracies in GE, Inaccuracies in A
notation: Pedalling