ambiguous scalar by matrix multiplication

[CarloLucibello]

julia> using SparseArrays, SuiteSparseGraphBlas

julia> x = sprand(5, 5, 0.5) |> GBMatrix
5x5 GraphBLAS double matrix, sparse by col
  14 entries, memory: 480 bytes

    (1,1)    0.652571
    (2,1)    0.877267
    (5,1)    0.498966
    (4,2)    0.109951
    (1,3)    0.517752
    (3,3)    0.812603
    (1,4)    0.0272527
    (2,4)    0.997701
    (3,4)    0.31351
    (4,4)    0.0128793
    (5,4)    0.806709
    (1,5)    0.207728
    (3,5)    0.497848
    (4,5)    0.993865

julia> 2 * x
ERROR: MethodError: *(::Int64, ::GBMatrix{Float64, Nothing}) is ambiguous. Candidates:
  *(x::V, u::Union{Transpose{T, <:SuiteSparseGraphBLAS.AbstractGBArray{T}}, SuiteSparseGraphBLAS.AbstractGBArray{T}}; mask, accum, desc) where {T, V<:(Union{var"#s4468", T, var"#s4467"} where {var"#s4468"<:Union{Bool, Float32, Float64, Int16, Int32, Int64, Int8, UInt16, UInt32, UInt64, UInt8, ComplexF32, ComplexF64}, var"#s4467"<:Number})} in SuiteSparseGraphBLAS at /Users/carlo/.julia/packages/SuiteSparseGraphBLAS/ijDcs/src/operations/map.jl:118
  *(A::Number, B::AbstractArray) in Base at arraymath.jl:21
Possible fix, define
  *(::V, ::Union{Transpose{T, <:SuiteSparseGraphBLAS.AbstractGBArray{T}}, SuiteSparseGraphBLAS.AbstractGBArray{T}}) where {T, V<:Number}
Stacktrace:
 [1] top-level scope
   @ REPL[20]:1

[rayegun]

Can you check either 0.9 or master? This should have been fixed, but I haven't run Aqua's ambiguity checker recently.

[CarloLucibello]

works on 0.9!