wild hunt rider need fix it stacks timer instead reset timer.

THis ONE first discovered back to 2014 and still exists.
WId hunt rider should work like the uncertain allegiance from control wizard renegade tree feat. I WILL explain.
UNCertain allegiance for every critical strike add the buff for 10 seconds, starts a countdown 10-9-8 and if cw critical again goes up again to 10 second so as long his critical it doesnt expires.
THE fix ON Wild hunt should be the same exactly mechanism . WILd Hunt rider tooltip says you have chance 2% to increase damage by 10% on encounter use. THIS companion benefits fast cooldowns classes and some powers like steal time multiproc it. ALL good here.
THE bug here is the timer starts to increasing further than 5 second instead stop at 5 second and starts a countdown. SO that 2% or 4% if you prefer at epic level chance becomes 100% chance with that bug and players do a whole run or a boss fight with permanent 10% increased damage.

SUMMARY: it should GO max 5 second as the tooltip says then start a countdown and every proc to reset to 5 seconds again.