[julia-users] splice! inconsistency with Vector{Vector{UInt8}}

['George Marrows' via julia-users]

Hi. As per the docs on splice! and n:(n-1) ranges, the following works fine 
to insert a value before location 1 in a Vector:
x = [1,2,3]
splice!(x, 1:0, 23)
print(x)  # => [23,1,2,3]

But the following behaves strangely and seems to corrupt the array in the 
process:
a = Vector{UInt8}[UInt8[0xf3,0x32,0x37]]
splice!(a, 1:0, UInt8[7,3])   # =>  MethodError: `convert` has no method 
matching convert(::Type{Array{UInt8,1}}, ::UInt8)
print(a) # => [#undef,#undef,UInt8[0xf3,0x32,0x37]]

Is this a bug, or have I simply not read the docs correctly?

Many thanks, 
George