### Godot version

v4.0.beta.custom_build [0a9e6e478]

### System information

Windows 10, Vulkan, GTX 960 528.24

### Issue description

This [55420](https://github.com/godotengine/godot/issues/55420) issue seems that it is not completely solved since in the advanced importer the same thing continues to happen.

### Steps to reproduce

- Put a 3D model on the scene
- Open the advanced import
- Disable Auto LOD or whatever you want to change
- See how mesh doesn't change

### Minimal reproduction project

N/A
if (importer->get_format_version() > version) {
		return true; 
	}
	
	String base_path = ResourceFormatImporter::get_singleton()->get_import_base_path(p_path);
	Ref<FileAccess> md5s = FileAccess::open(base_path + ".md5", FileAccess::READ, &err);
	if (md5s.is_null()) { 
		return true;
	}
	VariantParser::StreamFile md5_stream;
	md5_stream.f = md5s;
	while (true) {
		assign = Variant();
		next_tag.fields.clear();
		next_tag.name = String();
		err = VariantParser::parse_tag_assign_eof(&md5_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.md5:" + itos(lines) + "' error '" + error_text + "'.");
			return false; 
		}
		if (!assign.is_empty()) {
			if (!p_only_imported_files) {
				if (assign == "source_md5") {
					source_md5 = value;
				} else if (assign == "dest_md5") {
					dest_md5 = value;
				}
			}