It is hard to state whether the absence of 
in FE is a result of Chopin's proofreading or an oversight of the engraver. Therefore, in the main text we leave the inclusion of this indication at the discretion of the performer. The absence of the indication does not exclude , yet it offers a greater freedom of shaping the dynamics of this plenty of expression transition.
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category imprint: Differences between sources
issues: Errors in FE, Authentic corrections of FE
notation: Verbal indications