Fix minor bug introduced by f4fd45f0 in Faust::Transform ctor.

src/faust_linear_operator/CPU/faust_Transform.hpp

@@ -193,7 +193,7 @@ Faust::Transform<FPP,Cpu>::Transform(const std::vector<Faust::MatGeneric<FPP,Cpu
 		int min_size_id = 0;
 		if(lambda_ != FPP(1.0))
 		{
-			std::vector<int> fact_ids(data.size());
+			std::vector<int> fact_ids(facts.size());
 			std::generate(fact_ids.begin(), fact_ids.end(), [](){static int i = 0; return i++;});
 			std::vector<int>::iterator result = std::min_element(fact_ids.begin(), fact_ids.end(), [&facts](const int &a, const int &b){ return facts[a]->getNBytes() < facts[b]->getNBytes();});
 			min_size_id = std::distance(fact_ids.begin(), result);