### Godot version

ef025711a

### System information

ArchLinux x11

### Issue description

Accessing a scene unique node like this:
```gdscript
class_name Class extends Node
static func get_label() -> Label:
	return %label
```
and then accessing that class later:
```gdscript
func _ready() -> void:
	Main.get_label().text = "hello world"
```
causes a strange error when in the editor, and a normal error when run directly.
![image](https://user-images.githubusercontent.com/70787919/229785642-6aad4e31-6bd9-4eb5-bee4-7445b48a99bb.png)
```c++
ERROR: Node not found: "%label" (relative to "/root/main").
   at: get_node (scene/main/node.cpp:1364)
```
Instead of returning null.
As opposed to when using `get_node`:
```

SCRIPT ERROR: Cannot call method 'get_node' on a null value.
          at: get_label (res://main.gd:5)
SCRIPT ERROR: Invalid set index 'text' (on base: 'Nil') with value of type 'String'.
          at: _ready (res://control.gd:4)
```

### Steps to reproduce

Run mrp or follow outlined steps

### Minimal reproduction project

[bug.zip](https://github.com/godotengine/godot/files/11148287/bug.zip)

return bad_type;
		}
		result.kind = GDScriptParser::DataType::BUILTIN;
		result.builtin_type = GDScriptParser::get_builtin_type(first);
		if (result.builtin_type == Variant::ARRAY) {
			GDScriptParser::DataType container_type = type_from_metatype(resolve_datatype(p_type->container_type));
			if (container_type.kind != GDScriptParser::DataType::VARIANT) {
				container_type.is_constant = false;
				result.set_container_element_type(container_type);
			}
		}
	} else if (class_exists(first)) {
		
		result.kind = GDScriptParser::DataType::NATIVE;
		result.builtin_type = Variant::OBJECT;
		result.native_type = first;
	} else if (ScriptServer::is_global_class(first)) {
		if (parser->script_path == ScriptServer::get_global_class_path(first)) {
			result = parser->head->get_datatype();
		} else {
			String path = ScriptServer::get_global_class_path(first);
			String ext = path.get_extension();
			if (ext == GDScriptLanguage::get_singleton()->get_extension()) {
				Ref<GDScriptParserRef> ref = get_parser_for(path);
				if (!ref.is_valid() || ref->raise_status(GDScriptParserRef::INHERITANCE_SOLVED) != OK) {
					push_error(vformat(R"(Could not parse global class "%s" from "%s".)", first, ScriptServer::get_global_class_path(first)), p_type);
					return bad_type;
				}
				result = ref->get_parser()->head->get_datatype();
			} else {