Subclass cannot be inherited from other subclass in autoload using its naming alias

[Chaosus]

Godot version

a2c016e

System information

Windows 11

Issue description

Nested class from autoload cannot be accessed in the other script file using autoload name (only full path):

while this is ok:

Steps to reproduce

Create autoload GDScript file like :

extends Node

class A:
	pass

(call it Global.gd)

Create a GDScript and fill it like:

extends Node

class B extends Global.A:
	pass

EDIT: Actually is not even for 2nd case - it inherits autoload itself instead of nested class

Minimal reproduction project

class_test.zip

[rune-scape]

just tested that #68374 fixes this