rlocusplot sometimes does the wrong thing

[baggepinnen]

julia> using ControlSystems

julia> A = [4.38 209; -0.036 -2]; 

julia> B = [2.09; 0];

julia> C = [1 0];

julia> D = 0;

julia> sys = ss(A,B,C,D);

julia> rlocusplot(tf(sys), linspace(-1,8,50))