### 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)

} else if (p_property.name == "size_flags_horizontal" || p_property.name == "size_flags_vertical") {
			
			Container *parent_container = Object::cast_to<Container>(parent_node);
			Vector<int> size_flags;
			if (p_property.name == "size_flags_horizontal") {
				size_flags = parent_container->get_allowed_size_flags_horizontal();
			} else if (p_property.name == "size_flags_vertical") {
				size_flags = parent_container->get_allowed_size_flags_vertical();
			}
			
			String hint_string;
			if (size_flags.has(SIZE_FILL)) {
				hint_string += "Fill:1";
			}
			if (size_flags.has(SIZE_EXPAND)) {
				if (!hint_string.is_empty()) {
					hint_string += ",";
				}
				hint_string += "Expand:2";
			}
			if (size_flags.has(SIZE_SHRINK_CENTER)) {
				if (!hint_string.is_empty()) {
					hint_string += ",";
				}
				hint_string += "Shrink Center:4";
			}
			if (size_flags.has(SIZE_SHRINK_END)) {
				if (!hint_string.is_empty()) {
					hint_string += ",";
				}