A has an unnecessary 
before c2 before the chord on the 4th beat in the bar, yet it does not have the necessary raising f1 to f1. In FE the chord was left without any accidental, which was corrected in EE3. The additions were also performed in GE1 (→GE2), in which the accidentals are placed before each note. In GE3 (→GE4) three upper accidentals were removed, therefore, also the necessary before f1. An unnecessary revision was also performed in EE4, adding a before c2.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Errors in FE, Accidentals in different octaves, Errors in GE, GE revisions, Cautionary accidentals
notation: Pitch