### 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)

const StringName &name = p_identifier->name;
	GDScriptParser::DataType base = parser->current_class->get_datatype();
	GDScriptParser::ClassNode *base_class = base.class_type;
	{
		List<MethodInfo> gdscript_funcs;
		GDScriptLanguage::get_singleton()->get_public_functions(&gdscript_funcs);
		for (MethodInfo &info : gdscript_funcs) {
			if (info.name == name) {
				parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "built-in function");
				return;
			}
		}
		if (Variant::has_utility_function(name)) {
			parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "built-in function");
			return;
		} else if (ClassDB::class_exists(name)) {
			parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "global class");
			return;
		} else if (GDScriptParser::get_builtin_type(name) != Variant::VARIANT_MAX) {
			parser->push_warning(p_identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, p_context, name, "built-in type");
			return;
		}
	}
	if (p_in_local_scope) {
		while (base_class != nullptr) {
			if (base_class->has_member(name)) {