### 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)

type = ANNOTATION;
		}
	};
	struct ArrayNode : public ExpressionNode {
		Vector<ExpressionNode *> elements;
		ArrayNode() {
			type = ARRAY;
		}
	};
	struct AssertNode : public Node {
		ExpressionNode *condition = nullptr;
		ExpressionNode *message = nullptr;
		AssertNode() {
			type = ASSERT;
		}
	};
	struct AssignableNode : public Node {
		IdentifierNode *identifier = nullptr;
		ExpressionNode *initializer = nullptr;
		TypeNode *datatype_specifier = nullptr;
		bool infer_datatype = false;
		bool use_conversion_assign = false;
		int usages = 0;
		virtual ~AssignableNode() {}
	protected:
		AssignableNode() {}
	};
	struct AssignmentNode : public ExpressionNode {
		
		enum Operation {