### 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!

String source_file = "";
	String source_md5 = "";
	Vector<String> dest_files;
	String dest_md5 = "";
	int version = 0;
	bool found_uid = false;
	while (true) {
		assign = Variant();
		next_tag.fields.clear();
		next_tag.name = String();
		err = VariantParser::parse_tag_assign_eof(&stream, lines, error_text, next_tag, assign, value, nullptr, true);
		if (err == ERR_FILE_EOF) {
			break;
		} else if (err != OK) {
			ERR_PRINT("ResourceFormatImporter::load - '" + p_path + ".import:" + itos(lines) + "' error '" + error_text + "'.");
			return false; 
		}
		if (!assign.is_empty()) {
			if (assign.begins_with("path")) {
				to_check.push_back(value);
			} else if (assign == "files") {
				Array fa = value;
				for (int i = 0; i < fa.size(); i++) {
					to_check.push_back(fa[i]);
				}
			} else if (assign == "importer_version") {
				version = value;
			} else if (assign == "importer") {
				importer_name = value;
			} else if (assign == "uid") {