### Godot version

543750a1b3f5696f9ba8e91cb49dc7db05d2ae62

### System information

Windows 10, Vulkan

### Issue description

This is a regression since v4.1.dev4.official [5c2295ff5], I can't bisect atm to find the commit that caused it, maybe https://github.com/godotengine/godot/pull/77651 but that's just a guess.
When a HBoxContainer has a label child, and that label's text is changed, one used to be able to find the new size of the container by using call_deferred, this is no longer the case.

MRP correct behavior (v4.1.dev4.official [5c2295ff5]):
![image](https://github.com/godotengine/godot/assets/115422160/1b4a2b6f-ef19-42c1-b3e5-9f0c499a7a8c)
MRP incorrect (543750a1b3f5696f9ba8e91cb49dc7db05d2ae62):
![image](https://github.com/godotengine/godot/assets/115422160/25b711ae-7c3a-4c48-aff7-383bb8f600c3)




### Steps to reproduce

```gdscript
extends Control

@onready var h_box_container: HBoxContainer = $HBoxContainer
@onready var label: Label = $HBoxContainer/Label

func _ready() -> void:
	label.text = "larger non default text"
	print("h_box_container size.x: ", h_box_container.size.x)
	call_deferred("size_after_text_changed")

func size_after_text_changed() -> void:
	print("deferred h_box_container size.x: ", h_box_container.size.x)
```

### Minimal reproduction project

[call_deferred bug.zip](https://github.com/godotengine/godot/files/11654441/call_deferred.bug.zip)

ERR_READ_THREAD_GUARD_V(Rect2());
	if (!is_inside_tree()) {
		return Rect2();
	}
	Rect2 parent_rect;
	if (data.parent_canvas_item) {
		parent_rect = data.parent_canvas_item->get_anchorable_rect();
	} else {
#ifdef TOOLS_ENABLED
		Node *edited_scene_root = get_tree()->get_edited_scene_root();
		Node *scene_root_parent = edited_scene_root ? edited_scene_root->get_parent() : nullptr;
		if (scene_root_parent && get_viewport() == scene_root_parent->get_viewport()) {
			parent_rect.size = Size2(GLOBAL_GET("display/window/size/viewport_width"), GLOBAL_GET("display/window/size/viewport_height"));
		} else {
			parent_rect = get_viewport()->get_visible_rect();
		}
#else
		parent_rect = get_viewport()->get_visible_rect();
#endif
	}
	return parent_rect;
}
Size2 Control::get_parent_area_size() const {
	ERR_READ_THREAD_GUARD_V(Size2());
	return get_parent_anchorable_rect().size;
}
Transform2D Control::_get_internal_transform() const {