Omission of the 
sign in GE1 (→FE→EE, →GE2) may be explained by an oversight of the engraver (the sign in A is very small and written carelessly), Chopin's proofreading or its accidental removal while proofreading the slurs, whose traces are most visible in GE1. According to us, the latter is the most likely, yet due to Chopin's potential proofreading, in the main text we suggest a mordent in brackets, which we leave to the discretion of the performer. Cf. bars 109-110.
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category imprint: Differences between sources
issues: Authentic corrections of GE
notation: Ornaments