### 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!

call_deferred(SNAME("emit_signal"), "filesystem_changed"); 
		return;
	}
	String type = ResourceLoader::get_resource_type(p_file);
	if (type.is_empty() && textfile_extensions.has(p_file.get_extension())) {
		type = "TextFile";
	}
	String script_class = ResourceLoader::get_resource_script_class(p_file);
	ResourceUID::ID uid = ResourceLoader::get_resource_uid(p_file);
	if (cpos == -1) {
		
		int idx = 0;
		String file_name = p_file.get_file();
		for (int i = 0; i < fs->files.size(); i++) {
			if (p_file.naturalnocasecmp_to(fs->files[i]->file) < 0) {
				break;
			}
			idx++;
		}
		EditorFileSystemDirectory::FileInfo *fi = memnew(EditorFileSystemDirectory::FileInfo);
		fi->file = file_name;
		fi->import_modified_time = 0;
		fi->import_valid = type == "TextFile" ? true : ResourceLoader::is_import_valid(p_file);
		if (idx == fs->files.size()) {
			fs->files.push_back(fi);
		} else {
			fs->files.insert(idx, fi);
		}
		cpos = idx;
	} else {