Fix wrong type

Author: lkdvos

src/tensors/abstracttensor.jl

@@ -497,7 +497,7 @@ function Base.convert(::Type{Array}, t::AbstractTensorMap)
     else
         cod = codomain(t)
         dom = domain(t)
-        T = promote_type(scalartype(t), sectortype(t))
+        T = promote_type(scalartype(t), sectorscalartype(I))
         A = zeros(T, dims(cod)..., dims(dom)...)
         for (f₁, f₂) in fusiontrees(t)
             F = convert(Array, (f₁, f₂))