Core/GameObjects: fixed instant reset of gameobjects after activation

src/server/game/Entities/GameObject/GameObject.cpp

@@ -1100,7 +1100,7 @@ void GameObject::UseDoorOrButton(uint32 time_to_restore, bool alternative /* = f
     SwitchDoorOrButton(true, alternative);
     SetLootState(GO_ACTIVATED, user);
 
-    m_cooldownTime = time(NULL) + time_to_restore;
+    m_cooldownTime = time_to_restore ? (time(NULL) + time_to_restore) : 0;
 }
 
 void GameObject::SetGoArtKit(uint8 kit)