### 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)

for (int i = 0; i < p_array->elements.size(); i++) {
		GDScriptParser::ExpressionNode *element_node = p_array->elements[i];
		if (element_node->is_constant) {
			update_const_expression_builtin_type(element_node, p_element_type, "include");
		}
		const GDScriptParser::DataType &element_type = element_node->get_datatype();
		if (element_type.has_no_type() || element_type.is_variant() || !element_type.is_hard_type()) {
			mark_node_unsafe(element_node);
			continue;
		}
		if (!is_type_compatible(p_element_type, element_type, true, p_array)) {
			if (is_type_compatible(element_type, p_element_type)) {
				mark_node_unsafe(element_node);
				continue;
			}
			push_error(vformat(R"(Cannot have an element of type "%s" in an array of type "Array[%s]".)", element_type.to_string(), p_element_type.to_string()), element_node);
			return;
		}
	}
	GDScriptParser::DataType array_type = p_array->get_datatype();
	array_type.set_container_element_type(p_element_type);
	p_array->set_datatype(array_type);
}
void GDScriptAnalyzer::reduce_assignment(GDScriptParser::AssignmentNode *p_assignment) {