GameObjectPool fixes

src/Game/GameObject.cpp

@@ -11,10 +11,19 @@ GameObject::GameObject(Mono::Object managed_obj, GameObject *parent)
     : object_handle(managed_obj), parent(parent) 
 {}
 
-GameObject &GameObject::operator=(GameObject &&o){ 
+GameObject::GameObject(GameObject &&o) :
+    transform(o.transform),
+    components(std::move(o.components)),
+    object_handle(std::move(o.object_handle)),
+    parent(o.parent)
+{
+}
+
+GameObject &GameObject::operator=(GameObject &&o){
     transform = o.transform;
     components = std::move(o.components);
     object_handle = std::move(o.object_handle);
+    parent = o.parent;
     return *this;
 }