Phase Wrapping in bodeoptions (MATLAB 2016a)

Consider

close all;
opts = bodeoptions('cstprefs');
opts.PhaseWrapping = 'on';
s = tf('s');
G1 = s^1;
G2 = s^2;
G3 = s^3;
G4 = s^4;
bodeplot(G1, G2, G3, G4, opts);
grid on;

The phase plot of G3 is not equal to -90 (it equals 270). Up to at least MATLAB 2014a phase wrapping forced the phase to be between (-180, 180]. How can I get this behaviour back?

Answer 1

[yongeandcollege]

Thankfully, this issue seems to have been corrected in MATLAB 2017b.