3 & d2 in 
The version of FE1 is a result of the engraver's mistake in determining the range of the octave sign, which ends one quaver too early in this edition. Both in FE2 and in EE the error was corrected. In GE this sixth, also written with an octave sign, is actually on the correct pitch, yet the octave sign erroneously includes also the next quaver.
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, Errors in FE, Errors in GE, Authentic corrections of FE
notation: Pitch
