FE (→EE,GE1→GE2→GE3) has an additional 
before g1 in the 1st chord. The unnecessary accidental was removed only in GE4 (→GE5). The layout of sharps in FE allows to claim that the before g1 was initially misprinted instead of the raising b1 to b1. While proofreading this place, Chopin added only the necessary accidental, leaving the erroneous, yet not influencing the text, unchanged.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in FE, GE revisions, Authentic corrections of FE
notation: Pitch