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b. 264

composition: Op. 49, Fantaisie in F minor

..

In the last two R.H. quavers one can see deleted e3 notes in A.

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Deletions in A , Accompaniment changes

b. 264

composition: Op. 49, Fantaisie in F minor

..

The cautionary  to c2 was added – perhaps at Chopin's request – at the stage of proofreading FE1 (→FE2EE).

category imprint: Differences between sources

issues: Cautionary accidentals , Authentic corrections of FE

b. 264-265

composition: Op. 49, Fantaisie in F minor

till bar 265 in A

in b. 264 in GE

 in FE (→EE)

..

The shorter  marking in GE must have been an arbitrary decision by the engraver, who adjusted the sign to the bar. By contrast, the FE hairpin, of the same range as in GE, can be coming from Chopin, who would add some performance markings twice – both to A after [FC] had been finished, and to [FC] or proofs of FE1. This is also supported by the presence of a  hairpin in FE at the beginning of bar 265 – with longer  hairpin this sign would be contradictory.
As in analogous bars 94 and 98, the  in FE, certainly authentic, can be considered an alternative or an addition to the accent on e2-e3 written in A – see note to bar 265.

category imprint: Differences between sources

issues: Inaccuracies in GE , Scope of dynamic hairpins

b. 265

composition: Op. 49, Fantaisie in F minor

..

In A there are visible traces of corrections to the R.H. triplet. Chopin initially wrote it half a tone lower, as in three analogous bar 94, 98 and 261. A side effect of the correction could have been an oversight of the  restoring g2 in the 2nd half of the bar – in the initial version of this triplet the accidental was not necessary (see note next to this minim).

category imprint: Corrections & alterations; Source & stylistic information

issues: Corrections in A , Errors resulting from corrections , Deletions in A , Main-line changes

b. 265

composition: Op. 49, Fantaisie in F minor

Long accent in A & GE2

No mark in FE (→EE) & GE1

..

The lack of accent in GE1 is an oversight by the engraver, corrected in GE2.

category imprint: Differences between sources

issues: Errors in GE , GE revisions