Just like in a few other places (e.g. bar 250 and 577), one can ponder whether the long grace note is just a proof of the engraver's carelessness in this place. This is how it was assessed in GE; however, according to us, the situation in this bar is different (as well as in bar 607) – Chopin would frequently use grace notes in the form of small crotchets before longer values, e.g. minims (cf. e.g. the Concerto in F Minor, Op. 21, 1st mov., bar 208, as well as the Impromptu in G
Major, Op. 51, bar 104 or the Polonaise-Fantaisie, Op. 61, bar 209 and 212). Due to that reason, in the main text we leave the notation of FE (→EE). The above observations do not prove whether that notation is actually compliant with Chopin's intention; they only show that it is a possibility, hence the version of GE may be considered an acceptable variant (we encounter a short grace note in a similar context in, e.g. the Nocturne in C Minor, Op. 48 No. 1, bar 19).
Compare the passage in the sources»
category imprint: Differences between sources
issues: Inaccuracies in FE, GE revisions
notation: Ornaments