### Godot version

0810ecaafdbee3ea747219e6ab3a8de5d2216a09

### System information

Windows 11, Nvidia 3000, firefox

### Issue description

Exporting the gltf file is corrupt in blender.

### Steps to reproduce

1. Open project.
2. Export as glb
3. Open in blender
4. Blender display many warnings

![image](https://user-images.githubusercontent.com/32321/216740742-de662c5c-f5c3-44b5-a36e-8ad33defdbba.png)


### Minimal reproduction project

https://cdn.discordapp.com/attachments/598003845657788438/1071249610896580691/Test_Game_Project.zip


p_state->unique_names.insert("Skeleton3D"); 
	ERR_FAIL_COND_V(!p_state->json.has("scenes"), ERR_FILE_CORRUPT);
	const Array &scenes = p_state->json["scenes"];
	int loaded_scene = 0;
	if (p_state->json.has("scene")) {
		loaded_scene = p_state->json["scene"];
	} else {
		WARN_PRINT("The load-time scene is not defined in the glTF2 file. Picking the first scene.");
	}
	if (scenes.size()) {
		ERR_FAIL_COND_V(loaded_scene >= scenes.size(), ERR_FILE_CORRUPT);
		const Dictionary &s = scenes[loaded_scene];
		ERR_FAIL_COND_V(!s.has("nodes"), ERR_UNAVAILABLE);
		const Array &nodes = s["nodes"];
		for (int j = 0; j < nodes.size(); j++) {
			p_state->root_nodes.push_back(nodes[j]);
		}
		if (s.has("name") && !String(s["name"]).is_empty() && !((String)s["name"]).begins_with("Scene")) {
			p_state->scene_name = _gen_unique_name(p_state, s["name"]);
		} else {
			p_state->scene_name = _gen_unique_name(p_state, p_state->filename);
		}
	}
	return OK;
}
Error GLTFDocument::_parse_nodes(Ref<GLTFState> p_state) {