### 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 GDScriptParser::PatternNode::PT_BIND:
			if (p_match_test != nullptr) {
				result = p_match_test->get_datatype();
			} else {
				result.kind = GDScriptParser::DataType::VARIANT;
			}
			p_match_pattern->bind->set_datatype(result);
#ifdef DEBUG_ENABLED
			is_shadowing(p_match_pattern->bind, "pattern bind");
			if (p_match_pattern->bind->usages == 0 && !String(p_match_pattern->bind->name).begins_with("_")) {
				parser->push_warning(p_match_pattern->bind, GDScriptWarning::UNUSED_VARIABLE, p_match_pattern->bind->name);
			}
#endif
			break;
		case GDScriptParser::PatternNode::PT_ARRAY:
			for (int i = 0; i < p_match_pattern->array.size(); i++) {
				resolve_match_pattern(p_match_pattern->array[i], nullptr);
				decide_suite_type(p_match_pattern, p_match_pattern->array[i]);
			}
			result = p_match_pattern->get_datatype();
			break;
		case GDScriptParser::PatternNode::PT_DICTIONARY:
			for (int i = 0; i < p_match_pattern->dictionary.size(); i++) {
				if (p_match_pattern->dictionary[i].key) {
					reduce_expression(p_match_pattern->dictionary[i].key);
					if (!p_match_pattern->dictionary[i].key->is_constant) {
						push_error(R"(Expression in dictionary pattern key must be a constant.)", p_match_pattern->dictionary[i].key);
					}