Fix(Scripts/BlackwingLair) :bwl suppression traps (#27774)

Co-authored-by: Nefertumm <[email protected]>

src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_broodlord_lashlayer.cpp

@@ -134,10 +134,19 @@ struct go_suppression_device : public GameObjectAI
 
     void InitializeAI() override
     {
-        if (_instance->GetBossState(DATA_BROODLORD_LASHLAYER) == DONE)
+        me->AllowSaveToDB(true);
+
+        // Disarmed devices use GO_STATE_ACTIVE. Preserve that state after Broodlord dies;
+        // before then, a reload resets the transient disarm because its reset timer is not persisted.
+        if (me->GetGoState() == GO_STATE_ACTIVE)
         {
-            Deactivate();
-            return;
+            if (_instance->GetBossState(DATA_BROODLORD_LASHLAYER) == DONE)
+            {
+                Deactivate();
+                return;
+            }
+
+            me->SetGoState(GO_STATE_READY);
         }
 
         _events.ScheduleEvent(EVENT_SUPPRESSION_CAST, 5s);
@@ -166,6 +175,22 @@ struct go_suppression_device : public GameObjectAI
         }
     }
 
+    void OnStateChanged(uint32 state, Unit* /*unit*/) override
+    {
+        switch (state)
+        {
+            case GO_JUST_DEACTIVATED:
+                // Disarm Trap must retract the device, not send it through generic despawning.
+                me->SetLootState(GO_READY);
+                [[fallthrough]];
+            case GO_ACTIVATED:
+                DoAction(ACTION_DISARMED);
+                break;
+            default:
+                break;
+        }
+    }
+
     void DoAction(int32 action) override
     {
         if (action == ACTION_DEACTIVATE)
@@ -174,6 +199,9 @@ struct go_suppression_device : public GameObjectAI
         }
         else if (action == ACTION_DISARMED)
         {
+            if (!_active)
+                return;
+
             Deactivate();
             _events.CancelEvent(EVENT_SUPPRESSION_CAST);