In the Unihan_Variants.txt data file, only two entries show unexpected "self-variants":

• U+2D016 𭀖

U+2D016 self-variant 

U+2D016	kSemanticVariant	U+5398<kFennIndex:T U+91D0<kFennIndex:T U+2D016<kFennIndex:T

should probably be changed to:

U+2D016	kSemanticVariant	U+5398<kFennIndex:T U+91D0<kFennIndex:T

• U+7274 牴

U+7274 self-variant 

U+7274	kSpecializedSemanticVariant	U+7274 U+89DD

should probably be changed to:

U+7274	kSpecializedSemanticVariant	U+89DD

or, perhaps, the variant U+62B5 抵 was intended instead of U+7274 牴, in which case more changes would be needed across several entries...