A
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The staccato dot on the 1st quaver in the bar is undoubtedly a mistake of the engraver of GE1 (→FE→EE, →GE2) who probably considered its absence to be Chopin's oversight (similarly in the next bar). In A, Chopin marked the portato articulation (dots under the slur) in both bars only from the 2nd note, after the mordent.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in GE
notation: Articulation, Accents, Hairpins