### 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 (; i < comments[line].comment.length(); i++) {
			if (comments[line].comment[i] != ' ') {
				break;
			}
		}
		space_prefix = String(" ").repeat(i - 2);
	}
	while (comments.has(line)) {
		if (!comments[line].new_line || !comments[line].comment.begins_with("##")) {
			break;
		}
		String doc_line = comments[line].comment.trim_prefix("##");
		line++;
		if (state == DOC_LINE_NORMAL) {
			String stripped_line = doc_line.strip_edges();
			
			if (is_in_brief && !result.brief.is_empty() && stripped_line.is_empty()) {
				is_in_brief = false;
				continue;
			}
			if (stripped_line.begins_with("@tutorial")) {
				String title, link;
				int begin_scan = String("@tutorial").length();
				if (begin_scan >= stripped_line.length()) {
					continue; 
				}
				if (stripped_line[begin_scan] == ':') { 
					
					title = "";
					link = stripped_line.trim_prefix("@tutorial:").strip_edges();