### 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)

if ((p_property.usage & PROPERTY_USAGE_CLASS_IS_ENUM) && p_property.class_name != StringName()) {
				if (CoreConstants::is_global_enum(p_property.class_name)) {
					result = make_global_enum_type(p_property.class_name, StringName(), false);
					result.is_constant = false;
				} else {
					Vector<String> names = String(p_property.class_name).split(ENUM_SEPARATOR);
					if (names.size() == 2) {
						result = make_native_enum_type(names[1], names[0], false);
						result.is_constant = false;
					}
				}
			}
			
		}
	}
	return result;
}
bool GDScriptAnalyzer::get_function_signature(GDScriptParser::Node *p_source, bool p_is_constructor, GDScriptParser::DataType p_base_type, const StringName &p_function, GDScriptParser::DataType &r_return_type, List<GDScriptParser::DataType> &r_par_types, int &r_default_arg_count, BitField<MethodFlags> &r_method_flags, StringName *r_native_class) {
	r_method_flags = METHOD_FLAGS_DEFAULT;
	r_default_arg_count = 0;
	if (r_native_class) {
		*r_native_class = StringName();
	}
	StringName function_name = p_function;
	bool was_enum = false;
	if (p_base_type.kind == GDScriptParser::DataType::ENUM) {
		was_enum = true;
		if (p_base_type.is_meta_type) {
			
			p_base_type.kind = GDScriptParser::DataType::BUILTIN;