Select: 
Category
All
Graphic ambiguousness
Interpretations within context
Differences between sources
Editorial revisions
Corrections & alterations
Source & stylistic information
Notation
All
Pitch
Rhythm
Slurs
Articulation, Accents, Hairpins
Verbal indications
Pedalling
Fingering
Ornaments
Shorthand & other
Importance
All
Important
Main


b. 393

composition: (Op. 4), Sonata in C minor, Mvt IV

from 2. quaver in A

 from 3rd quaver in GE (→FE,EE,IE)

 from 1st quaver, our alternative suggestion

..

In the main text we put the  over the 2nd quaver, in accordance with the A notation. However, it is highly likely that the indication is supposed to be in force from the beginning of the bar, and its position is an example of a manner that can often be found in Chopin's pieces, that is putting markings within their scope of validity (and not at the beginning). Cf., e.g. the Concerto in E minor, Op. 11, I mov., bar 16.

category imprint: Graphic ambiguousness; Differences between sources

issues: Inaccuracies in GE , Centrally placed marks

b. 395-396

composition: (Op. 4), Sonata in C minor, Mvt IV

in A

in GE (→IE)

in FE & EE

..

Extending the  hairpin is a typical example of the engravers' inclination to prolong the marks written in the basis.

category imprint: Differences between sources

issues: EE revisions , GE revisions , FE revisions