It is difficult to say how the 
mark was overlooked by the editions. The most likely explanation would be an oversight by the engraver – the mark in A is small and squeezed in between the beam and the Clarin[etto] indication – if it were not for the fact that this ornament is absent in the sources of the orchestral part, in AsI and in GEork (→FEork). In the main text we give the published version, since:
- Chopin could have removed or accepted its absence in GE1, which was probably controlled by him.
- Chopin could have accepted the absence of the ornament in FE1, which he certainly proofread (probably both the copy of GE1 that served as the basis and the edition itself). This is all the more likely, since in the two preceding bars the composer introduced an important change to the R.H. part.
The version with an ornament, undoubtedly authentic, can be considered an equal variant.
Compare the passage in the sources»
category imprint: Differences between sources
issues: Errors in GE, GE revisions, Authentic corrections of GE
notation: Ornaments