In the main text we do not include the cautionary 
to c2 at the beginning of bar 82 added by GE (→FE,EE,IE). By contrast, we add naturals – necessary and cautionary – to c2 and c3 at the beginning of each half of the bar starting from the 2nd half of bar 82 to the 1st half of bar 86. The majority of them were also added by GE (→FE,EE,IE) – the only overlooked accidentals are: the ones in the 2nd half of bar 82, the 1st half of bar 83 and the accidental to c2 in the 2nd half of bar 83 (in FE the first one was added).
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources; Editorial revisions
issues: Omissions to cancel alteration, GE revisions, FE revisions, Inaccuracies in A
notation: Pitch