The 
hairpins written in GC are certainly too long – leading the diminuendo one quaver beyond 
placed at the beginning of the new phrase is unable to be performed in a noticeable manner (cf. the Etude in A minor, No. 11, bar 16). Therefore, in the main text we end the sign still in bar 16, in accordance with FE, EE and GE2 (→GE3). In turn, both potentially authentic moments of beginning the sign – in GC and in FE and EE – are, according to us, equally justified, as far as the music is concerned. The slight shift of the beginning of in GE is a typical inaccuracy of this edition – adjustment of the range of the sign to the rhythmic structure (most often to beams).
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Scope of dynamic hairpins, GE revisions, Inaccuracies in GC
notation: Articulation, Accents, Hairpins