Differences between the sources as far as the range of the hairpin mark is concerned, although pronounced, are most probably accidental. Somewhat delayed (bar 244) beginning of the 
mark in GC (→GE) has no practical significance, while embracing bar 247 with the is almost definitely Gutmann's mistake, as he made many such errors in his copies. Two marks in FE are probably to be understood as one; in Chopin's times, the old convention was sometimes in use in which continuation of a dynamic change in a new line of text was marked with the same mark as a new dynamic change would be. In our main text we propose the marks of FE interpreted according to that convention.
category imprint: Differences between sources
issues: Errors of GC
notation: Articulation, Accents, Hairpins