Why doesn't recursivecopy! allow to copy a vector into a matrix? #589

x_mat = rand(10, 10)
y_mat = rand(100, 100)
y_vec = view(y_mat, :, 1)

copyto!(x_mat, y_vec)

using RecursiveArrayTools

recursivecopy!(x_mat, y_vec)

ERROR: MethodError: no method matching recursivecopy!(::Matrix{Float64}, ::SubArray{Float64, 1, Matrix{Float64}, Tuple{Base.Slice{…}, Int64}, true})
The function `recursivecopy!` exists, but no method is defined for this combination of argument types.

Closest candidates are:
  recursivecopy!(::AbstractArray{T, N}, ::AbstractArray{T2, N}) where {T<:Number, T2<:Number, N}
   @ RecursiveArrayTools ~/.julia/packages/RecursiveArrayTools/9sjwU/src/utils.jl:73
  recursivecopy!(::AbstractVectorOfArray, ::AbstractVectorOfArray)
   @ RecursiveArrayTools ~/.julia/packages/RecursiveArrayTools/9sjwU/src/utils.jl:97
  recursivecopy!(::T, ::T) where T<:JumpProcesses.ExtendedJumpArray
   @ JumpProcesses ~/.julia/packages/JumpProcesses/MF0Pb/src/extended_jump_array.jl:143
  ...

Stacktrace:
 [1] top-level scope
   @ Untitled-1:41
Some type information was truncated. Use `show(err)` to see complete types.

function recursivecopy!(
        b::AbstractArray{T, N},
        a::AbstractArray{T2, N}
    ) where {T <: Number, T2 <: Number, N}
    return copyto!(b, a)
end

function recursivecopy!(
        b::AbstractArray{T, N},
        a::AbstractArray{T2, M}
    ) where {T <: Number, T2 <: Number, N, M}
    return copyto!(b, a)
end