The engraver of GE did not notice the c
1 notes on the 3rd and 5th quavers in A and he placed the 
written before the 1st of them before e1. Chopin corrected this mistake in FE (→EE), however, the unnecessary remained in all editions except for GE2.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in GE, GE revisions, Authentic corrections of FE, Uncertain notes on ledger lines
notation: Pitch