### 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)

const GDScriptParser::DataType *current_data_type = &p_class_node->base_type;
	while (current_data_type && current_data_type->kind == GDScriptParser::DataType::Kind::CLASS) {
		GDScriptParser::ClassNode *current_class_node = current_data_type->class_type;
		if (has_member_name_conflict_in_script_class(p_member_name, current_class_node, p_member_node)) {
			String parent_class_name = current_class_node->fqcn;
			if (current_class_node->identifier != nullptr) {
				parent_class_name = current_class_node->identifier->name;
			}
			push_error(vformat(R"(The member "%s" already exists in parent class %s.)", p_member_name, parent_class_name), p_member_node);
			return ERR_PARSE_ERROR;
		}
		current_data_type = &current_class_node->base_type;
	}
	
	if (current_data_type && current_data_type->kind == GDScriptParser::DataType::Kind::NATIVE) {
		if (current_data_type->native_type != StringName()) {
			return check_native_member_name_conflict(
					p_member_name,
					p_member_node,
					current_data_type->native_type);
		}
	}
	return OK;
}
void GDScriptAnalyzer::get_class_node_current_scope_classes(GDScriptParser::ClassNode *p_node, List<GDScriptParser::ClassNode *> *p_list) {