### 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)

HashMap<Variant, GDScriptParser::ExpressionNode *, VariantHasher, StringLikeVariantComparator> elements;
	for (int i = 0; i < p_dictionary->elements.size(); i++) {
		const GDScriptParser::DictionaryNode::Pair &element = p_dictionary->elements[i];
		if (p_dictionary->style == GDScriptParser::DictionaryNode::PYTHON_DICT) {
			reduce_expression(element.key);
		}
		reduce_expression(element.value);
		if (element.key->is_constant) {
			if (elements.has(element.key->reduced_value)) {
				push_error(vformat(R"(Key "%s" was already used in this dictionary (at line %d).)", element.key->reduced_value, elements[element.key->reduced_value]->start_line), element.key);
			} else {
				elements[element.key->reduced_value] = element.value;
			}
		}
	}
	
	GDScriptParser::DataType dict_type;
	dict_type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
	dict_type.kind = GDScriptParser::DataType::BUILTIN;
	dict_type.builtin_type = Variant::DICTIONARY;
	dict_type.is_constant = true;
	p_dictionary->set_datatype(dict_type);
}
void GDScriptAnalyzer::reduce_get_node(GDScriptParser::GetNodeNode *p_get_node) {
	GDScriptParser::DataType result;
	result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
	result.kind = GDScriptParser::DataType::NATIVE;
	result.native_type = SNAME("Node");
	result.builtin_type = Variant::OBJECT;
	if (!ClassDB::is_parent_class(parser->current_class->base_type.native_type, result.native_type)) {