IE1
compare
As in bar 5, in A there is no 
restoring B
on the bottom note of the chord in the middle of the bar. Chopin's patent mistake, considering the context, was corrected in GE (→FE,EE,IE).
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Omissions to cancel alteration, GE revisions, Errors of A
notation: Pitch