Container size not updating correctly when using call_deferred

[Lippanon]

Godot version

543750a

System information

Windows 10, Vulkan

Issue description

This is a regression since v4.1.dev4.official [5c2295f], I can't bisect atm to find the commit that caused it, maybe #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 [5c2295f]):

MRP incorrect (543750a):

Steps to reproduce

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

[Rindbee]

The order of calls is this: label.set_text() => lable.update_minimum_size() => container.update_minimum_size() => container.size_changed.

update_minimum_size can be simply regarded as call_deferred("_update_minimum_size"). There are at least two deferred calls here.

The resized or minimum_size_changed signals can be used.

[Lippanon]

The resized or minimum_size_changed signals can be used.

Those can be a work-around in some cases, but they are only emitted if the size changes. One might want to do something like a dynamic code-driven animation that relies on the correct size after setting the text, without knowing if that text will force a resize ahead of time, which makes things difficult. await get_tree().process_frame is also not the same because of the 1-frame delay, seemingly.