### 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


String bone_name = p_name;
	bone_name = bone_name.replace(":", "_");
	bone_name = bone_name.replace("/", "_");
	return bone_name;
}
String GLTFDocument::_gen_unique_bone_name(Ref<GLTFState> p_state, const GLTFSkeletonIndex p_skel_i, const String &p_name) {
	String s_name = _sanitize_bone_name(p_name);
	if (s_name.is_empty()) {
		s_name = "bone";
	}
	String u_name;
	int index = 1;
	while (true) {
		u_name = s_name;
		if (index > 1) {
			u_name += "_" + itos(index);
		}
		if (!p_state->skeletons[p_skel_i]->unique_names.has(u_name)) {
			break;
		}
		index++;
	}
	p_state->skeletons.write[p_skel_i]->unique_names.insert(u_name);
	return u_name;
}
Error GLTFDocument::_parse_scenes(Ref<GLTFState> p_state) {