### 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)

}
		Node *statement = parse_statement();
		if (statement == nullptr) {
			if (error_count++ > 100) {
				push_error("Too many statement errors.", suite);
				break;
			}
			continue;
		}
		suite->statements.push_back(statement);
		
		switch (statement->type) {
			case Node::VARIABLE: {
				VariableNode *variable = static_cast<VariableNode *>(statement);
				const SuiteNode::Local &local = current_suite->get_local(variable->identifier->name);
				if (local.type != SuiteNode::Local::UNDEFINED) {
					push_error(vformat(R"(There is already a %s named "%s" declared in this scope.)", local.get_name(), variable->identifier->name), variable->identifier);
				}
				current_suite->add_local(variable, current_function);
				break;
			}
			case Node::CONSTANT: {
				ConstantNode *constant = static_cast<ConstantNode *>(statement);
				const SuiteNode::Local &local = current_suite->get_local(constant->identifier->name);
				if (local.type != SuiteNode::Local::UNDEFINED) {
					String name;
					if (local.type == SuiteNode::Local::CONSTANT) {
						name = "constant";
					} else {
						name = "variable";