unexpected mapslice result on 0.5rc3

[Marius Millea]

Is this the expected behavior? 

julia> mapslices(x->tuple(x), [1 2; 3 4], 1)

1×2 Array{Tuple{Array{Int64,1}},2}:

 ([2,4],)  ([2,4],)

julia> mapslices(x->tuple(x...), [1 2; 3 4], 1)

1×2 Array{Tuple{Int64,Int64},2}:

 (1,3)  (2,4)

The first case certainly came as pretty unexpected to me. Does it have something to do with copies vs views into the array?

[Tim Holy]

https://github.com/JuliaLang/julia/issues/18524