Derived of ViewportTexture class becomes ViewportTexture in Sprite2D after NodePath selected

[ndbn]

Tested versions

4.4

System information

Linux, x86_64

Issue description

If you create class like:

extends ViewportTexture
class_name ViewportTexture2

Then try to select ViewportTexture2 in Sprite2D texture, after selecting NodePath in opened window, texture class in Sprite2D becomes ViewportTexture

Only way is to click Cancel in window with selecting NodePath and then click on Assign:

Steps to reproduce

Create class derived from ViewportTexture
Try to select it for Sprite2D texture

Minimal reproduction project (MRP)

mrp_viewporttexture.zip