### Godot version

4.0 RC 3

### System information

Macbook m1

### Issue description

If I normally use:
```
Skeleton2D.new()
```

if works.

If I use:
```
@export_group("Skeleton2D")
...
Skeleton2D.new()
```

I get error: `Invalid call. Nonexistent function 'new' in base 'Nil'.`

### Steps to reproduce

- Run a script where you have `@export_group` with same name as a node class name that you use `.new()` on.

```
extends Node2D
class_name Test

@export_group("Skeleton2D")

# Called when the node enters the scene tree for the first time.
func _ready():
	var skeleton = Skeleton2D.new()


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	pass
```

### Minimal reproduction project

[BugNew.zip](https://github.com/godotengine/godot/files/10818936/BugNew.zip)

type = GROUP;
				annotation = p_annotation;
			}
		};
		IdentifierNode *identifier = nullptr;
		String icon_path;
		Vector<Member> members;
		HashMap<StringName, int> members_indices;
		ClassNode *outer = nullptr;
		bool extends_used = false;
		bool onready_used = false;
		bool has_static_data = false;
		bool annotated_static_unload = false;
		String extends_path;
		Vector<IdentifierNode *> extends; 
		DataType base_type;
		String fqcn; 
#ifdef TOOLS_ENABLED
		String doc_description;
		String doc_brief_description;
		Vector<Pair<String, String>> doc_tutorials;
		
		void set_enum_value_doc(const StringName &p_name, const String &p_doc_description) {
			ERR_FAIL_INDEX(members_indices[p_name], members.size());
			members.write[members_indices[p_name]].enum_value.doc_description = p_doc_description;
		}
#endif 
		bool resolved_interface = false;
		bool resolved_body = false;
		Member get_member(const StringName &p_name) const {