Core/Unit: Fix issue with Divine Shield immunities

Closes #14910

(cherry picked from commit 2263cb9e1015ed0f6dbf83b63d8f0332bcbe6205)

Conflicts:
	src/server/game/Entities/Unit/Unit.cpp

1 files changed, 8 insertions, 0 deletions

diff --git a/src/server/game/Entities/Unit/Unit.cpp b/src/server/game/Entities/Unit/Unit.cpp
index 15ae5f9cdba..74056219a7e 100644
--- a/src/server/game/Entities/Unit/Unit.cpp
+++ b/src/server/game/Entities/Unit/Unit.cpp
@@ -1741,6 +1741,14 @@ void Unit::CalcAbsorbResist(Unit* victim, SpellSchoolMask schoolMask, DamageEffe
             splitDamage = RoundToInterval(splitDamage, uint32(0), uint32(dmgInfo.GetDamage()));
 
             dmgInfo.AbsorbDamage(splitDamage);
+
+            // check if caster is immune to damage
+            if (caster->IsImmunedToDamage(schoolMask))
+            {
+                victim->SendSpellMiss(caster, (*itr)->GetSpellInfo()->Id, SPELL_MISS_IMMUNE);
+                continue;
+            }
+
             uint32 split_absorb = 0;
             DealDamageMods(caster, splitDamage, &split_absorb);