The version of EE is almost certainly a mistake: oversight of the quaver flag. In GE1a flags were overlooked next to the last two notes of the bar, which is a side effect of the graphical retouches in this fragment of the page. The mistake was not repeated in GE2 (→GE3).
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in EE, Errors resulting from corrections, Errors in GE
notation: Rhythm