It is difficult to say how the difference in the indications at the beginning of the piece occurred. As legato was not being removed in FC, it was probably added by Chopin in the stage of proofreading FE or to the basis thereof. One of these scenarios presented an opportunity for a possible removal of 
, which in FC seems to have been written in Fontana's hand. Due to the above, in the main text we suggest it in a variant form (in brackets). See also bars 13 and 33.
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category imprint: Differences between sources; Editorial revisions
issues: No initial dynamic marking, Authentic corrections of FE
notation: Verbal indications