Rage Vortex of Berserk with Warcry interarion

Rage Vortex of Berserk (transfigured Gem) is technically "one duration skill" because his persist active when u haves Rage.

My question is:

When you uses one warcry (exemple intimidating cry) his give to you buffs exert's next attacks (in intimidating cry cause the buff is 100% double damage) if u uses Rage vortex of Berserk when u haves exert attack this effect go persist until end my rage for deactive the storm ?

Because is no clear in gameplay.