### 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
selected_shader_material = p_for_material;
	attach_shader_to_selected(p_preferred_mode);
}
void SceneTreeDock::open_add_child_dialog() {
	create_dialog->set_base_type("CanvasItem");
	_tool_selected(TOOL_NEW, true);
	reset_create_dialog = true;
}
void SceneTreeDock::open_instance_child_dialog() {
	_tool_selected(TOOL_INSTANTIATE, true);
}
List<Node *> SceneTreeDock::paste_nodes(bool p_paste_as_sibling) {