The visible in A repetition sign probably means that while writing the Polonaise, Chopin assumed repeating bars 54-85 (the doubt arises, i.a., due to the absence of a respective sign in bar 54). The absence of this sign in FE (→GE,EE), which is probably a result of Chopin's proofreading, indicates a change of decision and this is the version we give in the main text. However, an erroneous introduction of a repetition sign due to the lack of note text in the previous bars, favouring confusion and related to the abbreviated notation of bars 71-85, also cannot be excluded.
Compare the passage in the sources»
category imprint: Differences between sources; Source & stylistic information
issues: Errors of A, Authentic corrections of FE, Differences in form
notation: Shorthand & other