### 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)

break;
		case PRESET_BOTTOM_LEFT:
		case PRESET_BOTTOM_RIGHT:
		case PRESET_CENTER_BOTTOM:
		case PRESET_BOTTOM_WIDE:
			set_anchor(SIDE_TOP, ANCHOR_END, p_keep_offsets);
			break;
	}
	
	switch (p_preset) {
		case PRESET_TOP_LEFT:
		case PRESET_BOTTOM_LEFT:
		case PRESET_CENTER_LEFT:
		case PRESET_LEFT_WIDE:
			set_anchor(SIDE_RIGHT, ANCHOR_BEGIN, p_keep_offsets);
			break;
		case PRESET_CENTER_TOP:
		case PRESET_CENTER_BOTTOM:
		case PRESET_CENTER:
		case PRESET_VCENTER_WIDE:
			set_anchor(SIDE_RIGHT, 0.5, p_keep_offsets);
			break;
		case PRESET_TOP_RIGHT:
		case PRESET_BOTTOM_RIGHT:
		case PRESET_CENTER_RIGHT:
		case PRESET_TOP_WIDE:
		case PRESET_RIGHT_WIDE:
		case PRESET_BOTTOM_WIDE:
		case PRESET_HCENTER_WIDE:
		case PRESET_FULL_RECT: