### Godot version

v4.0 rc6

### System information

Windows 10

### Issue description

When using a ViewportTexture from a SubViewport on a TextureRect, it throws errors after running the scene once and then switching scenes in the editor.
![Pasted image 20230227212626](https://user-images.githubusercontent.com/44676282/221680047-984fa03e-33d1-4856-9a7f-1700b28423cf.png)


### Steps to reproduce

Run the canvas-scene once.
Switch to another scene in the editor.
Switch back to the canvas-scene

### Minimal reproduction project

[ViewportTextureError.zip](https://github.com/godotengine/godot/files/10844099/ViewportTextureError.zip)

set_path(p_path, false);
}
void Resource::_take_over_path(const String &p_path) {
	set_path(p_path, true);
}
RID Resource::get_rid() const {
	if (get_script_instance()) {
		Callable::CallError ce;
		RID ret = get_script_instance()->callp(SNAME("_get_rid"), nullptr, 0, ce);
		if (ce.error == Callable::CallError::CALL_OK && ret.is_valid()) {
			return ret;
		}
	}
	if (_get_extension() && _get_extension()->get_rid) {
		RID ret;
		ret.from_uint64(_get_extension()->get_rid(_get_extension_instance()));
		if (ret.is_valid()) {
			return ret;
		}
	}
	return RID();
}
#ifdef TOOLS_ENABLED
uint32_t Resource::hash_edited_version() const {