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deepcopy result if result === X to prevent X from zeroing
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@ -331,8 +331,11 @@ function mul!{T}(result::AbstractVector{T}, X::AbstractVector{T}, Y::AbstractVec
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end
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end
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function mul!(result::GroupRingElem, X::GroupRingElem, Y::GroupRingElem)
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result.coeffs *= 0
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function mul!{T}(result::GroupRingElem{T}, X::GroupRingElem{T}, Y::GroupRingElem{T})
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# @show result === X
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if result === X
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result = deepcopy(result)
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end
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mul!(result.coeffs, X.coeffs, Y.coeffs, parent(X).pm)
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return result
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end
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