### 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)

push_error(vformat(R"(%s in operator %s.)", p_binary_op->reduced_value, Variant::get_operator_name(p_binary_op->variant_op)), p_binary_op);
				} else {
					push_error(vformat(R"(Invalid operands to operator %s, %s and %s.)",
									   Variant::get_operator_name(p_binary_op->variant_op),
									   Variant::get_type_name(p_binary_op->left_operand->reduced_value.get_type()),
									   Variant::get_type_name(p_binary_op->right_operand->reduced_value.get_type())),
							p_binary_op);
				}
			}
		} else {
			ERR_PRINT("Parser bug: unknown binary operation.");
		}
		p_binary_op->set_datatype(type_from_variant(p_binary_op->reduced_value, p_binary_op));
		return;
	}
	GDScriptParser::DataType result;
	if ((p_binary_op->variant_op == Variant::OP_EQUAL || p_binary_op->variant_op == Variant::OP_NOT_EQUAL) &&
			((left_type.kind == GDScriptParser::DataType::BUILTIN && left_type.builtin_type == Variant::NIL) || (right_type.kind == GDScriptParser::DataType::BUILTIN && right_type.builtin_type == Variant::NIL))) {
		
		result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
		result.kind = GDScriptParser::DataType::BUILTIN;
		result.builtin_type = Variant::BOOL;
	} else if (left_type.is_variant() || right_type.is_variant()) {
		
		result.kind = GDScriptParser::DataType::VARIANT;
		mark_node_unsafe(p_binary_op);
	} else if (p_binary_op->variant_op < Variant::OP_MAX) {
		bool valid = false;
		result = get_operation_type(p_binary_op->variant_op, left_type, right_type, valid, p_binary_op);
		if (!valid) {