b. 30
The mark in A is clearly shorter than the respective one in analog. b. 28, hence one could interpret it as a long accent. According to us, it is more likely that, in the face of the preceding it mark, Chopin meant a diminuendo hairpin. In the main text we keep the slight difference in the range of the marks between those bars, visible in A. Both FC (→GE) and FE (→EE) clearly extended the marks, whereas FC (→GE) also shortened the mark.
Compare the passage in the sources»
category imprint: Graphic ambiguousness; Differences between sources
issues: Long accents, Inaccuracies in FE, Scope of dynamic hairpins, Inaccuracies in FC
notation: Articulation, Accents, Hairpins