### 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)

complete_extents(n_for);
	
	can_break = could_break;
	can_continue = could_continue;
	return n_for;
}
GDScriptParser::IfNode *GDScriptParser::parse_if(const String &p_token) {
	IfNode *n_if = alloc_node<IfNode>();
	n_if->condition = parse_expression(false);
	if (n_if->condition == nullptr) {
		push_error(vformat(R"(Expected conditional expression after "%s".)", p_token));
	}
	consume(GDScriptTokenizer::Token::COLON, vformat(R"(Expected ":" after "%s" condition.)", p_token));
	n_if->true_block = parse_suite(vformat(R"("%s" block)", p_token));
	n_if->true_block->parent_if = n_if;
	if (n_if->true_block->has_continue) {
		current_suite->has_continue = true;
	}
	if (match(GDScriptTokenizer::Token::ELIF)) {
		SuiteNode *else_block = alloc_node<SuiteNode>();
		else_block->parent_function = current_function;
		else_block->parent_block = current_suite;
		SuiteNode *previous_suite = current_suite;
		current_suite = else_block;
		IfNode *elif = parse_if("elif");
		else_block->statements.push_back(elif);
		complete_extents(else_block);
		n_if->false_block = else_block;
		current_suite = previous_suite;
	} else if (match(GDScriptTokenizer::Token::ELSE)) {