Fix for apply_mult broadcasting issues. #163
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Pandas 1.1 changes behaviour of index.intersection() to return duplicated indicies in the intersection. This causes issues in the application of mults as .loc[] methods propagate this duplication (doubling duplicates). adding .drop_duplicates() to the intersection fixes this.
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Fixing issues with duplicated indicies in pandas.index.intersection() #162
Pandas 1.1 changed behaviour of index.intersection() to return duplicated indicies in the intersection.
This causes issues in the application of mults as .loc methods propagate this duplication (doubling duplicates).
Adding .drop_duplicates() to the intersection fixes this.