The version of the editions is probably erroneous – cf. analogous bars 65-66, yet also similar figurations in bars 13-14 and 63-64 – hence in the main text we give the version of AI. The intended note in FE (→GE,EE) was probably an A
and the error consisted in writing a single sharp (A
) instead of the double one (A) before the note, which in the notation of FE comes down to the omission of the dots surrounding the 
– cf. both signs at the beginning of bars 13-14.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Errors in FE
notation: Pitch