It is not entirely certain whether Chopin wanted to keep the double bar line after this bar. In FE there are visible traces of possible corrections in print; however, it is difficult to state whether they were aimed at removing the second line. The repetitions of the D
major part are no longer separated with a double bar line, yet it must be the presence of an introductory bass motif that explains the difference in notation. Therefore, in the main text we keep the undoubtedly authentic notation of A; however, according to us, both versions can be considered equivalent.
Compare the passage in the sources»
category imprint: Differences between sources
issues: Authentic corrections of FE
notation: Shorthand & other