The 
hairpin in bars 45-48 is only in the version prepared for print; in FE the sign begins earlier than in A. The remaining editions convey the version of FE more or less accurately – in GE1op the signs are slightly shorter, almost the same as in A, while in EE and GEno2 they are slightly longer. Since the exact differences are of no practical meaning here, we divide them into two groups, corresponding with the range either to the sign in A or in FE.
In bars 61-64 the hairpin is absent in the previous manuscripts, there are also no differences in the length of the sign in the remaining sources.
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations
issues: Inaccuracies in GE, Inaccuracies in FE, Scope of dynamic hairpins
notation: Articulation, Accents, Hairpins