There are no accidentals before the 3rd quaver in FE (→EE,GE1→GE2), so that the notes should be interpreted as d
1-f1. The obvious mistake is indicated by the orchestral part, which features d1 (in violins II) both in the parts of FEorch (→GEorch) and MFrorch. A comparison with the reappearance of that theme, a second higher, also clearly supports d1, since the respective place (bar 421) features e1 and not e1. It is the first of a few serious mistakes of FE concerning the notation of the orchestral inserts of that theme – cf. bar 179, 186, 187.
The natural lowering d1 to d1 was added in GE3.
Compare the passage in the sources»
category imprint: Interpretations within context; Differences between sources
issues: Errors in FE, GE revisions
notation: Pitch