Error when showing an STRtree with only a single leaf node

[asinghvi17]

When creating an STRtree with a single geometry I get the following error:

julia> r1  = STRtree(country_df.geometry)
STRtree
Error showing value of type STRtree{SortTileRecursiveTree.STRLeafNode{Vector{Extents.Extent{(:X, :Y), Tuple{Tuple{Float64, Float64}, Tuple{Float64, Float64}}}}}}:
ERROR: type STRLeafNode has no field extent
Stacktrace:
  [1] getproperty
    @ ./Base.jl:37 [inlined]
  [2] show(io::IOContext{Base.TTY}, tree::STRtree{SortTileRecursiveTree.STRLeafNode{Vector{Extents.Extent{(:X, :Y), Tuple{Tuple{Float64, Float64}, Tuple{Float64, Float64}}}}}})
    @ SortTileRecursiveTree ~/.julia/packages/SortTileRecursiveTree/OaYpZ/src/SortTileRecursiveTree.jl:39
  [3] show(io::IOContext{Base.TTY}, ::MIME{Symbol("text/plain")}, x::STRtree{SortTileRecursiveTree.STRLeafNode{Vector{Extents.Extent{(:X, :Y), Tuple{Tuple{Float64, Float64}, Tuple{Float64, Float64}}}}}})
    @ Base.Multimedia ./multimedia.jl:47

[maxfreu]

Should work now on master, new version is tagged. Sorry, I saw your PR too late and had already merged an ugly runtime check (: So I'm closing your PR.

[asinghvi17]

No worries :D, as long as it works!

[maxfreu]

Should work now :)