The slashed grace notes in bar 77 and 81, which is inaccurate, were almost certainly written by Fontana in [FC] – slashed grace notes were part of Fontana's style as a copyist, which can be observed in the pieces in the case of which both the autograph and its copy are preserved, e.g. in the Preludes, Op. 28. Nevertheless, in the main text we give slashed grace notes, since it was in this form that Chopin wrote them in 4 remaining analogous places – bar 164, 168, 234 and 238. Generally, in obvious situations Chopin would often ignore whether grace notes were written precisely, allegedly writing long grace notes in places in which the context, like this one, determines the use of short grace notes.
The inaccurate notation was aptly revised in GE as well.
Compare the passage in the sources»
category imprint: Differences between sources
issues: GE revisions, Notation of grace notes, Non-slashed grace notes
notation: Ornaments