### 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

‮
case BinaryOpNode::OP_TYPE_TEST:
			push_text(" IS ");
			break;
		case BinaryOpNode::OP_CONTENT_TEST:
			push_text(" IN ");
			break;
		case BinaryOpNode::OP_COMP_EQUAL:
			push_text(" == ");
			break;
		case BinaryOpNode::OP_COMP_NOT_EQUAL:
			push_text(" != ");
			break;
		case BinaryOpNode::OP_COMP_LESS:
			push_text(" < ");
			break;
		case BinaryOpNode::OP_COMP_LESS_EQUAL:
			push_text(" <= ");
			break;
		case BinaryOpNode::OP_COMP_GREATER:
			push_text(" > ");
			break;
		case BinaryOpNode::OP_COMP_GREATER_EQUAL:
			push_text(" >= ");
			break;
	}
	print_expression(p_binary_op->right_operand);
	
	push_text(")");
}
void GDScriptParser::TreePrinter::print_call(CallNode *p_call) {