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Rhythm

b. 3-4

composition: Op. 50 No. 3, Mazurka in C♯ minor

c2 repeated in AI & AF (→FEEE)

c2 tied in GE

..

The version with tied c2, coming probably from [AG] (→GE), is undoubtedly later, hence we give it directly in the main text. Admittedly, Chopinesque proofreading of FE took place even later, yet the fact that a tie was not added here does not allow us to draw conclusions that Chopin returned to the original concept, since the difference could have been of less importance to the composer, hence he could have forgotten it while proofreading FE.
There is a similar situation in b. 7-8 and 95-96.

category imprint: Differences between sources; Corrections & alterations

b. 7-8

composition: Op. 50 No. 3, Mazurka in C♯ minor

g1 repeated in AI & AF (→FEEE)

g1 tied in GE

..

Like in b. 3-4, in the main text we give the version with tied g1, coming probably from [AG] (→GE).

category imprint: Differences between sources; Corrections & alterations

b. 9

composition: Op. 50 No. 3, Mazurka in C♯ minor

Quavers in AI & AF (→FE)

Crotchets in GE & EE

category imprint: Differences between sources

issues: Errors in EE , Errors in GE

b. 20-24

composition: Op. 50 No. 3, Mazurka in C♯ minor

Quavers & rests in AI & AF (→FEEE)

Crotchets in GE

..

In b. 20 and 24, AI initially contained the original concept of the L.H. part:  and .
Chopin then crossed out the rests and the semiquavers and replaced them with quaver rests, which is preserved in AF (→FEEE). The notation of GE, in which Chopin simplified it even more, seems to be the latest in this situation. The conclusion is confirmed by analogous b. 112 and 116, in which all sources feature crotchets only.

category imprint: Differences between sources; Corrections & alterations; Source & stylistic information

issues: Corrections of AI

b. 31-32

composition: Op. 50 No. 3, Mazurka in C♯ minor

d2 repeated in AI, AF, GE & EE

d2 tied in FE

..

In the main text we give the version of both preserved autographs, which, assuming on the basis of GE, could also have been in [AG]. The version of FE, almost certainly proofread by Chopin, can be considered equal.

category imprint: Differences between sources; Corrections & alterations

issues: Errors in GE , Authentic corrections of FE