In A Chopin forgot to repeat the tie sustaining a flat1 in the new system. This most probably caused an error in GE1, where that tie is missing. The error was corrected, probably by Chopin, in FE (→EE), it was also rectified in GE2.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Errors in GE, Errors of A, Authentic corrections of FE
notation: Rhythm