Vector{Pair} - display errors for element type Pair{Any,Vector}

[KlausC]

julia> pairs = Vector{Pair}()
0-element Array{Pair,1}

julia> push!(pairs, ""=>[1])
1-element Array{Pair,1}:
Error showing value of type Array{Pair,1}:
ERROR: AssertionError: Array{Int64,1} is not a subtype of Pair
Stacktrace:
 [1] typeinfo_prefix(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::Array{Int64,1}) at ./arrayshow.jl:480
 [2] show_vector(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::Array{Int64,1}, ::Char, ::Char) at ./arrayshow.jl:433 (repeats 2 times)
 [3] show at ./arrayshow.jl:447 [inlined]
 [4] show(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::Pair{String,Array{Int64,1}}) at ./show.jl:424

julia> pairs[1]
"" => [1]