The longer slur of As is probably the initial version, concerning the crossed-out version of the melodic line in b. 10-11. It is indicated by a second slur between b. 11-12, which begins only just over the a1 crotchet, added (or left) as valid after corrections.
It most probably means that the second slur was also added only after those corrections, probably with intent to replace the first, longer slur with it.
The missing slur in b. 11-12 in FE (→EE) is a mistake of the engraver; in turn, leaving the grace note in b. 11 out of the slur in GE and adding a little slur combining that grace note with the crotchet in EE are editorial revisions.
Compare the passage in the sources »
category imprint: Differences between sources; Corrections & alterations; Source & stylistic information
issues: EE revisions, Errors in FE, GE revisions
notation: Slurs
