Voidshrieker switch magic reductions immediately

[balleny]

Current Behaviour

https://www.wowhead.com/wotlk/npc=18870/voidshrieker#abilities change their magic reduction buff and the abilities used, directly after being affected by a spell of a different school

Expected Blizzlike Behaviour

should either be based on first hit only or there should be some delay before "reconsidering" to switch to a different resistance

Source

https://clips.twitch.tv/BlindingRealSwallowSpicyBoy-pLEH4_lENXtPK76u
(cata but there shouldnt be a change)

Steps to reproduce the problem

attack mob with 2 abilities of different magic school

Extra Notes

No response

AC rev. hash/commit

c9bdf4c

Operating system

u

Custom changes or Modules

No response