You can currently stack major savagery on the live server (at least EU).
This video explains what the bug is about, how it happens and prooves that it aint just a UI bug. Its not a promotion for bug using - it shall raise attention since I believe that ZOS only take action if an iusse got popular.
What I want to point out is: Please fix the bug without bringing back the old issues of Major Savagery. In Homestead we lost this buff if its source was a potion and you would have a skill which provided the same buff on 1 of your 2 skillbars if you were swapping from the skillbar with such a skill to the bar without.
Zeni, I know you have the solution because you already fixed it for Inner Light and the Spellcrit Potions - pls do the same fix for us Stamina players.
Cheers