Question about Rune of the Bear (Boldur's Unique Gear)

Continuing the discussion from [PS4] Gear bug with Rune of the Bear:

The text reads:
+13.88% Healing Received
+5.55% Attack Damage
Boldur Only: When Ekkuni Greatshield breaks, gain 0% to all damage for 4 seconds.

Does that mean that you aren’t taking any damage for 4 seconds, or that your damage output is getting no power gain? Not sure if this is a typo or if there is something that I’m missing.

apparently the piece of gear is bugged. It’s supposed to be 25% not 0%.