### Godot version

3b086aa06

### System information

ArchLinux x11

### Issue description

```gdscript
extends Node

@export_group("My Properties")
@export var number = 3
@export var string = ""

@export_group("Prefixed Properties", "prefix_")
@export var prefix_number = 3
@export var prefix_string = ""

@export_group("", "")
@export var ungrouped_number = 3
```

![image](https://user-images.githubusercontent.com/70787919/214983963-528c415b-745b-47fc-9777-36ebe31a3060.png)


### Steps to reproduce

- create script
- @export_group
- go inspector

### Minimal reproduction project

‮
switch (p_type) {
		case Variant::PACKED_BYTE_ARRAY:
		case Variant::PACKED_INT32_ARRAY:
		case Variant::PACKED_INT64_ARRAY:
			return Variant::INT;
		case Variant::PACKED_FLOAT32_ARRAY:
		case Variant::PACKED_FLOAT64_ARRAY:
			return Variant::FLOAT;
		case Variant::PACKED_STRING_ARRAY:
			return Variant::STRING;
		case Variant::PACKED_VECTOR2_ARRAY:
			return Variant::VECTOR2;
		case Variant::PACKED_VECTOR3_ARRAY:
			return Variant::VECTOR3;
		case Variant::PACKED_COLOR_ARRAY:
			return Variant::COLOR;
		default:
			return Variant::NIL;
	}
}
bool GDScriptParser::DataType::is_typed_container_type() const {