### 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

‮
break;
		case GDScriptTokenizer::Token::AMPERSAND:
			operation->operation = BinaryOpNode::OP_BIT_AND;
			operation->variant_op = Variant::OP_BIT_AND;
			break;
		case GDScriptTokenizer::Token::PIPE:
			operation->operation = BinaryOpNode::OP_BIT_OR;
			operation->variant_op = Variant::OP_BIT_OR;
			break;
		case GDScriptTokenizer::Token::CARET:
			operation->operation = BinaryOpNode::OP_BIT_XOR;
			operation->variant_op = Variant::OP_BIT_XOR;
			break;
		case GDScriptTokenizer::Token::AND:
		case GDScriptTokenizer::Token::AMPERSAND_AMPERSAND:
			operation->operation = BinaryOpNode::OP_LOGIC_AND;
			operation->variant_op = Variant::OP_AND;
			break;
		case GDScriptTokenizer::Token::OR:
		case GDScriptTokenizer::Token::PIPE_PIPE:
			operation->operation = BinaryOpNode::OP_LOGIC_OR;
			operation->variant_op = Variant::OP_OR;
			break;
		case GDScriptTokenizer::Token::IS:
			operation->operation = BinaryOpNode::OP_TYPE_TEST;
			break;
		case GDScriptTokenizer::Token::IN:
			operation->operation = BinaryOpNode::OP_CONTENT_TEST;
			operation->variant_op = Variant::OP_IN;
			break;