### 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)

EnumNode *enum_node = alloc_node<EnumNode>();
	bool named = false;
	if (check(GDScriptTokenizer::Token::IDENTIFIER)) {
		advance();
		enum_node->identifier = parse_identifier();
		named = true;
	}
	push_multiline(true);
	consume(GDScriptTokenizer::Token::BRACE_OPEN, vformat(R"(Expected "{" after %s.)", named ? "enum name" : R"("enum")"));
	HashMap<StringName, int> elements;
#ifdef DEBUG_ENABLED
	List<MethodInfo> gdscript_funcs;
	GDScriptLanguage::get_singleton()->get_public_functions(&gdscript_funcs);
#endif
	do {
		if (check(GDScriptTokenizer::Token::BRACE_CLOSE)) {
			break; 
		}
		if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected identifier for enum key.)")) {
			EnumNode::Value item;
			GDScriptParser::IdentifierNode *identifier = parse_identifier();
#ifdef DEBUG_ENABLED
			if (!named) { 
				for (MethodInfo &info : gdscript_funcs) {
					if (info.name == identifier->name) {
						push_warning(identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, "enum member", identifier->name, "built-in function");
					}
				}
				if (Variant::has_utility_function(identifier->name)) {
					push_warning(identifier, GDScriptWarning::SHADOWED_GLOBAL_IDENTIFIER, "enum member", identifier->name, "built-in function");