Ruby Sanctum - Halion freeze against "dead" hunters

[nachtwolfarg]

CURRENT BEHAVIOUR:

When a single hunter activate Halion and uses Feign Death (https://www.wowhead.com/spell=5384/feign-death) Halion stop atacking, and stay freeze.

Outsider casters can kill Halion from outside.

EXPECTED BLIZZLIKE BEHAVIOUR:

Outsiders shouldn't be able to atack Halion from outside.
Halion shouldn't pretend to be alone in the world and kill the hunter or stop the combat and disappear.

STEPS TO REPRODUCE THE PROBLEM:

1. Enter the instance (no matter the dificult set) in a raid with a hunter and casters.
2. Only the hunter must step in the center (calling for Halion).
3. When Halion appear the hunter must use Feign Death.
4. The casters can atack Halion from outside.

EXTRA NOTES:

AC HASH/COMMIT:

b5e1d93

OPERATING SYSTEM:

Debian 8

MODULES:

OTHER CUSTOMIZATIONS:

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[Kitzunu]

Anyone outside the "ring" should be LOS and unable to attack or heal anything within.

However, this is an interesting case that I don't have enough research of yet, because while a Hunters feign death should not drop combat in fights with bosses, should it still reset the fight if you are the only one engaged with the boss?

[Kitzunu]

If a hunter is solo in-combat with a raid boss the raid boss should drop combat. However, that is not the case if > 1 is in combat with it.

[J3m51nc]

Still broken, a hunter kiting Halion close to flamewall before feigning allows melee to strike Halion and ranged to cast at Halion from outside the flamewall arena with impunity until Feign Death runs out.