Fix tween_property on Basis to properly update its value

[sepTN]

Fix #79372

extends Node

@onready var lbl1 : Label = $Label
@onready var lbl2 : Label = $Label2

var vector3 = Vector3.ONE
var target_vector3 = Vector3(-1,-1,-1)

var basis = Basis(Vector3.RIGHT, Vector3.UP, Vector3.BACK)
var target_basis = Basis(Vector3.LEFT, Vector3.DOWN, Vector3.FORWARD)

func _ready() -> void:
	create_tween().tween_property(self, "basis", target_basis, 5.0)
	create_tween().tween_property(self, "vector3", target_vector3, 5.0)

func _process(delta):
	lbl2.text = "Tweening Vector3: " + str(vector3)
	lbl1.text = "Tweening Basis: " + str(basis)

Before

before.mp4

After

after.mp4

[YuriSizov]

Thanks!

[YuriSizov]

Cherry-picked for 4.1.1.