The missing staccato mark in A (→FE→EE) seems to be an oversight of Chopin, since corresponding marks are present in the three remaining, analogous b. 22, 46 and 154. The dot in FC seems to have been added after the remaining signs (note and slur) had already been written. Due to very numerous unquestionably Chopinesque additions in FC, it is also here that we can assume Chopin's correction.
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category imprint: Differences between sources
issues: Authentic corrections of FC
notation: Articulation, Accents, Hairpins