add missing similar definition

Author: lkdvos

src/tensors/sectorvector.jl

@@ -37,6 +37,7 @@ Base.size(v::SectorVector, args...) = size(parent(v), args...)
 Base.similar(v::SectorVector) = SectorVector(similar(v.data), v.structure)
 Base.similar(v::SectorVector, ::Type{T}) where {T} = SectorVector(similar(v.data, T), v.structure)
 Base.similar(v::SectorVector, V::ElementarySpace) = SectorVector{eltype(v), sectortype(V), storagetype(v)}(undef, V)
+Base.similar(v::SectorVector, ::Type{T}, V::ElementarySpace) where {T} = SectorVector(similar(v.data, T, reduceddim(V)), V)
 
 Base.copy(v::SectorVector) = SectorVector(copy(v.data), v.structure)