assertion failed: :((len>0))

[Keno]

Hit the following assertion failure:

assertion failed: :((len>0))
 in error at error.jl:22
 in format_fixed_scientific at /Users/kfischer/.julia/Gadfly/src/format.jl:74
 in anonymous at /Users/kfischer/.julia/Gadfly/src/format.jl:137
 in identity_formatter at /Users/kfischer/.julia/Gadfly/src/scale.jl:66
 in render at /Users/kfischer/.julia/Gadfly/src/guide.jl:403
 in render_prepared at /Users/kfischer/.julia/Gadfly/src/Gadfly.jl:668
 in render at /Users/kfischer/.julia/Gadfly/src/Gadfly.jl:614
 in writemime at /Users/kfischer/.julia/Gadfly/src/Gadfly.jl:706
 in sprint at io.jl:434
 in display_dict at /Users/kfischer/.julia/IJulia/src/execute_request.jl:36

Data is here: https://gist.github.com/loladiro/7463559

plot(readtable("test.csv"),x="x1",y="x2")

is the failing command.