The 
overlooked by Chopin before the last semiquaver (e2) was added only in FESB and GE3.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Accidentals in different octaves, GE revisions, FE revisions, Inaccuracies in A, Errors repeated in GE, Errors repeated in FE, Errors repeated in EE
notation: Pitch