### 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 (TS->has_feature(TextServer::FEATURE_UNICODE_SECURITY) && TS->spoof_check(identifier)) {
				push_warning(get_node, GDScriptWarning::CONFUSABLE_IDENTIFIER, identifier);
			}
#endif
			get_node->full_path += identifier;
			path_state = PATH_STATE_NODE_NAME;
		} else if (!check(GDScriptTokenizer::Token::SLASH) && !check(GDScriptTokenizer::Token::PERCENT)) {
			push_error(vformat(R"(Unexpected "%s" in node path.)", current.get_name()));
			complete_extents(get_node);
			return nullptr;
		}
	} while (match(GDScriptTokenizer::Token::SLASH) || match(GDScriptTokenizer::Token::PERCENT));
	complete_extents(get_node);
	return get_node;
}
GDScriptParser::ExpressionNode *GDScriptParser::parse_preload(ExpressionNode *p_previous_operand, bool p_can_assign) {
	PreloadNode *preload = alloc_node<PreloadNode>();
	preload->resolved_path = "<missing path>";
	push_multiline(true);
	consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected "(" after "preload".)");
	make_completion_context(COMPLETION_RESOURCE_PATH, preload);
	push_completion_call(preload);
	preload->path = parse_expression(false);
	if (preload->path == nullptr) {
		push_error(R"(Expected resource path after "(".)");
	}
	pop_completion_call();
	pop_multiline();
	consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected ")" after preload path.)*");
	complete_extents(preload);