Godot version

4.0.rc2

System information

Windows 10, Forward Clustered

Issue description

After RC2 in GDExtention properties that are resources (for example, PackedScenes) get reset to <empty> no matter what you do (even if you assign manually from .tscn file)

Steps to reproduce

Have an exposed resource property with GDExtention and try assigning any resource to it.

Minimal reproduction project