According to us, all source versions of the slurring of the motif beginning in bar 51 are inaccurate. The bar is the last on the page in A, which would often contribute to inaccuracies in the notation of slurs (cf. e.g. bars 31-35). Nothing indicates that moving the beginning of the slur in GE1 and FE could have been a result of Chopin's proofreading: the first does not influence the meaning of the sign, while the result of the second is a slur contrary to the authentic articulation and dynamic markings (staccato on the 1st chord in the bar and 
). Therefore, in the main text we suggest a slur that is present in all sources in an analogous situation in the next bar.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Inaccuracies in GE, Inaccuracies in FE, Inaccurate slurs in A
notation: Slurs