in chord in 
The first three out of the given versions are certainly authentic and they present an interesting example of Chopin's works on the detail, performed in stages. In EE2, due to the skepticism concerning the correctness of the version of FE and GE1, it was replaced with another one, structured analogously to the majority of the similar bars.
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
issues: EE revisions, Accompaniment changes, Authentic corrections of FE, Authentic corrections of GE
notation: Pitch