### 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)

}
						base = look_class->get_datatype();
						found = true;
						break;
					}
					if (look_class->has_member(name)) {
						resolve_class_member(look_class, name, id);
						GDScriptParser::ClassNode::Member member = look_class->get_member(name);
						GDScriptParser::DataType member_datatype = member.get_datatype();
						switch (member.type) {
							case GDScriptParser::ClassNode::Member::CLASS:
								break; 
							case GDScriptParser::ClassNode::Member::CONSTANT:
								if (member_datatype.kind != GDScriptParser::DataType::SCRIPT && member_datatype.kind != GDScriptParser::DataType::CLASS) {
									push_error(vformat(R"(Constant "%s" is not a preloaded script or class.)", name), id);
									return ERR_PARSE_ERROR;
								}
								break;
							default:
								push_error(vformat(R"(Cannot use %s "%s" in extends chain.)", member.get_type_name(), name), id);
								return ERR_PARSE_ERROR;
						}
						base = member_datatype;
						found = true;
						break;
					}
				}
				if (!found) {
					push_error(vformat(R"(Could not find base class "%s".)", name), id);
					return ERR_PARSE_ERROR;