GE1
compare
b. 70-72
The change of piano to in EE had practically no impact on the sense of that indication; meanwhile, moving it in between the staves in GE2 (→GE3) may suggest that it applies to the L.H. as well, which is definitely not what Chopin intended.
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, GE revisions
notation: Verbal indications