Mapwindow StackOverflowError?

Hi,

I get a StackOverflowError with mapwindow:

julia> mapwindow(median!, rand(300,300,500), (1,1,11))
ERROR: StackOverflowError:
Stacktrace:
 [1] CartesianIndex at ./multidimensional.jl:65 [inlined]
 [2] CartesianIndex at ./multidimensional.jl:68 [inlined]
 [3] CartesianIndex at ./multidimensional.jl:76 [inlined]
 [4] nextedgeitem(::TiledIteration.EdgeIterator{3,Tuple{Base.OneTo{Int64},Base.OneTo{Int64},Base.OneTo{Int64}},Tuple{UnitRange{Int64},UnitRange{Int64},UnitRange{Int64}}}, ::CartesianIndex{3}) at /home/donghoon/.julia/packages/TiledIteration/7kjuN/src/TiledIteration.jl:110
 [5] nextedgeitem(::TiledIteration.EdgeIterator{3,Tuple{Base.OneTo{Int64},Base.OneTo{Int64},Base.OneTo{Int64}},Tuple{UnitRange{Int64},UnitRange{Int64},UnitRange{Int64}}}, ::CartesianIndex{3}) at /home/donghoon/.julia/packages/TiledIteration/7kjuN/src/TiledIteration.jl:111 (repeats 79983 times)

but it works with a bit smaller array or a larger filtering window.

#Both work:
mapwindow(median!, rand(300,300,400), (1,1,11))
mapwindow(median!, rand(300,300,500), (3,3,11))

Does anyone have any idea on this issue?

Reproduce the reported mapwindow(median!, rand(300,300,500), (1,1,11)) call and compare it with the two working variants in the issue. Then inspect TiledIteration.jl around nextedgeitem at lines 110-111, where the recursive stack trace repeats. Done means the failing case no longer raises StackOverflowError while the smaller-array and larger-window cases still work.