### Godot version

v4.1.rc1.official [1f9e540f1]

### System information

Windows 10

### Issue description

Attempting to reorder the children of a TabContainer results in an unintended ordering and incorrect undo states.

Also happens in v4.0.3.stable.official [5222a99f5].

https://github.com/godotengine/godot/assets/3820082/2c2458e3-88ad-46d9-8a04-f289a049984a



### Steps to reproduce

1. Add a new TabContainer
2. Add a few children to it
3. Drag and drop to erroneously reorder them
4. Attempt to undo the change

### Minimal reproduction project

N/A
bool is_processing_internal() const;
	void set_process_priority(int p_priority);
	int get_process_priority() const;
	void set_process_thread_group_order(int p_order);
	int get_process_thread_group_order() const;
	void set_physics_process_priority(int p_priority);
	int get_physics_process_priority() const;
	void set_process_input(bool p_enable);
	bool is_processing_input() const;
	void set_process_shortcut_input(bool p_enable);
	bool is_processing_shortcut_input() const;
	void set_process_unhandled_input(bool p_enable);
	bool is_processing_unhandled_input() const;
	void set_process_unhandled_key_input(bool p_enable);
	bool is_processing_unhandled_key_input() const;
	_FORCE_INLINE_ bool _is_any_processing() const {
		return data.process || data.process_internal || data.physics_process || data.physics_process_internal;
	}
	_FORCE_INLINE_ bool is_accessible_from_caller_thread() const {
		if (current_process_thread_group == nullptr) {
			
			
			
			return !data.inside_tree || is_current_thread_safe_for_nodes();
		} else {
			
			return current_process_thread_group == data.process_thread_group_owner;
		}
	}
	_FORCE_INLINE_ bool is_readable_from_caller_thread() const {