fix(Script/Ulduar): Freya spawning multiple chests (#11794)

src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp

@@ -315,10 +315,12 @@ public:
         void DamageTaken(Unit*, uint32& damage, DamageEffectType, SpellSchoolMask) override
         {
             if (damage >= me->GetHealth())
+            {
+                damage = 0;
+                if (m_pInstance->GetData(TYPE_FREYA) != DONE)
                 {
                     Talk(SAY_DEATH);
 
-                damage = 0;
                     me->SetReactState(REACT_PASSIVE);
                     me->SetUnitFlag(UNIT_FLAG_NON_ATTACKABLE);
                     me->SetFaction(FACTION_FRIENDLY);
@@ -359,6 +361,7 @@ public:
                     }
                 }
             }
+        }
 
         void JustSummoned(Creature* cr) override
         {