Question about Grim Resilience Reflex Mod

[belgarathmth 21]

Hello,  I just started replaying the great Sacred 2 during the holiday break.

This question is for Community Patch 1.60.

My Shadow Warrior's "Chance to Evade" from items is showing up in a different place from "Chance to Evade" from his Grim Resilience Reflex mod. That is, "Chance to Evade" shows up twice, once in purple for items worn with the affix, and a second time down at the bottom in white from the buff. 

The question is, do these two sources of "Chance to Evade" stack, or is one overriding the other? Is the game adding both of those numbers, or is it taking the higher of the two, or what? If one is overriding the other, then taking the mod on the buff is a waste, or possibly even a penalty. 

Thank you.