The chords at the beginning of bars 16, 17, 19 and 21-23 in A are provided with clear wedges (the mark in bar 17 discussed separately would not be obvious, yet in the context of the remaining ones it does not raise any doubts). In spite of this, in the editions all these marks were reproduced as dots. According to us, it is an inaccuracy of the engraver who was not familiar enough with the details of Chopin's notation.
Compare the passage in the sources »
category imprint: Graphic ambiguousness; Differences between sources
issues: Inaccuracies in FE, Wedges
notation: Articulation, Accents, Hairpins