### Godot version

v4.0.stable.official [92bee43ad]

### System information

Windows 10, 64bit

### Issue description

First, please run the reproduction project.
When I run the test scene, It report error like follow and app exited. 
![image](https://user-images.githubusercontent.com/35988767/229076194-f737bcb6-6c9b-4aa0-9bd5-3dbd36bc8d03.png)
And I don't know where was error.



### Steps to reproduce

1. Open the reproduction project.
2. Open scene 'user:\\xd\XActors\Weapon\Gun\Rifle\XRifle.tscn'
3. Assign the scene's Meshinstance's mesh with 'user:\\xd\XActors\Weapon\Gun\Rifle\XRifle01.res'
4. Run the scene
Opps, the scene exited.
![GIF](https://user-images.githubusercontent.com/35988767/229077075-4b18b9e0-933e-47f6-b6a8-0af966574884.gif)


### Minimal reproduction project

[GlbTest.zip](https://github.com/godotengine/godot/files/11120181/GlbTest.zip)

NOTE: The project that I provided was picked up from my owner project. Sorry I can't provide a minimal reproduction project because I don't know which step cause this issue. I was test like this:
Create a project, import the glb file, create meshinstance and assign mesh, but there was not error!

for (const ItemAction &ia : scan_actions) {
		switch (ia.action) {
			case ItemAction::ACTION_NONE: {
			} break;
			case ItemAction::ACTION_DIR_ADD: {
				int idx = 0;
				for (int i = 0; i < ia.dir->subdirs.size(); i++) {
					if (ia.new_dir->name.naturalnocasecmp_to(ia.dir->subdirs[i]->name) < 0) {
						break;
					}
					idx++;
				}
				if (idx == ia.dir->subdirs.size()) {
					ia.dir->subdirs.push_back(ia.new_dir);
				} else {
					ia.dir->subdirs.insert(idx, ia.new_dir);
				}
				fs_changed = true;
			} break;
			case ItemAction::ACTION_DIR_REMOVE: {
				ERR_CONTINUE(!ia.dir->parent);
				ia.dir->parent->subdirs.erase(ia.dir);
				memdelete(ia.dir);
				fs_changed = true;
			} break;
			case ItemAction::ACTION_FILE_ADD: {
				int idx = 0;
				for (int i = 0; i < ia.dir->files.size(); i++) {
					if (ia.new_file->file.naturalnocasecmp_to(ia.dir->files[i]->file) < 0) {
						break;