Notes. We report the minimum and maximum values of the polarization degree, Π, and EVPA, Ψ (measured in radians), for each jet shape and emission scenario, over the entire observation period, t_obs = 20 days. We define ΔΠ = Π_max − Π_min and ΔΨ = Ψ_max − Ψ_min. The time evolution of the cylindrical jet is shown in Fig. 3, the time evolution of the “sausage-like” jet is shown in Figs. 4–5, and the time evolution of the nearly parabolic jet is shown in Fig. 6. When the jet is nearly parabolic, “single blob A” and “single blob B” correspond to different initial coordinates of the blob, as reported in Table 1.