### 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

‮
}
#ifdef DEBUG_ENABLED
	bool all_have_return = true;
	bool have_wildcard = false;
#endif
	while (!check(GDScriptTokenizer::Token::DEDENT) && !is_at_end()) {
		MatchBranchNode *branch = parse_match_branch();
		if (branch == nullptr) {
			advance();
			continue;
		}
#ifdef DEBUG_ENABLED
		if (have_wildcard && !branch->patterns.is_empty()) {
			push_warning(branch->patterns[0], GDScriptWarning::UNREACHABLE_PATTERN);
		}
		have_wildcard = have_wildcard || branch->has_wildcard;
		all_have_return = all_have_return && branch->block->has_return;
#endif
		match->branches.push_back(branch);
	}
	complete_extents(match);
	consume(GDScriptTokenizer::Token::DEDENT, R"(Expected an indented block after "match" statement.)");
#ifdef DEBUG_ENABLED
	if (all_have_return && have_wildcard) {
		current_suite->has_return = true;
	}
#endif
	return match;
}
GDScriptParser::MatchBranchNode *GDScriptParser::parse_match_branch() {