Thorns/Damage shield is not correct in the results tab.

[shaugen]

Describe the bug
The Damage shield (Thorns) from various sources is not correct in the results tab.
I have equipped several items that give Thorns (or Damage shield as you call them), and 4 armor kits with 20 thorns each.
In the results tab, only 1 Armor kit is showing up, no matter how many I add, or no matter what other gear items with this effect is added.

It does 22 dmg (due to gladiator stance providing 10% extra), so at least that is correct.
But it should do way more, and give double threat according to tooltip.
Double threat is also bugged. It gives same threat as dmg given at the moment

To Reproduce
Check the following link and see for yourself.

Sim Links and Screenshots
https://wowsims.github.io/sod/tank_warrior/#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