### 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(NodePath());
	return data.focus_next;
}
void Control::set_focus_previous(const NodePath &p_prev) {
	ERR_MAIN_THREAD_GUARD;
	data.focus_prev = p_prev;
}
NodePath Control::get_focus_previous() const {
	ERR_READ_THREAD_GUARD_V(NodePath());
	return data.focus_prev;
}
#define MAX_NEIGHBOR_SEARCH_COUNT 512
Control *Control::_get_focus_neighbor(Side p_side, int p_count) {
	ERR_FAIL_INDEX_V((int)p_side, 4, nullptr);
	if (p_count >= MAX_NEIGHBOR_SEARCH_COUNT) {
		return nullptr;
	}
	if (!data.focus_neighbor[p_side].is_empty()) {
		Node *n = get_node_or_null(data.focus_neighbor[p_side]);
		ERR_FAIL_NULL_V_MSG(n, nullptr, "Neighbor focus node path is invalid: '" + data.focus_neighbor[p_side] + "'.");
		Control *c = Object::cast_to<Control>(n);
		ERR_FAIL_NULL_V_MSG(c, nullptr, "Neighbor focus node is not a control: '" + n->get_name() + "'.");
		bool valid = true;
		if (!c->is_visible()) {
			valid = false;
		}
		if (c->get_focus_mode() == FOCUS_NONE) {
			valid = false;
		}
		if (valid) {