### 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


DisjointSet<GLTFNodeIndex> disjoint_set;
	for (int i = 0; i < p_skin->joints.size(); ++i) {
		const GLTFNodeIndex node_index = p_skin->joints[i];
		const GLTFNodeIndex parent = p_state->nodes[node_index]->parent;
		disjoint_set.insert(node_index);
		if (p_skin->joints.find(parent) >= 0) {
			disjoint_set.create_union(parent, node_index);
		}
	}
	Vector<GLTFNodeIndex> roots;
	disjoint_set.get_representatives(roots);
	if (roots.size() <= 1) {
		return;
	}
	int maxHeight = -1;
	
	for (int i = 0; i < roots.size(); ++i) {
		const GLTFNodeIndex root = roots[i];
		if (maxHeight == -1 || p_state->nodes[root]->height < maxHeight) {
			maxHeight = p_state->nodes[root]->height;
		}
	}