### 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

‮
resolve_variable(static_cast<GDScriptParser::VariableNode *>(p_node), true);
			break;
		case GDScriptParser::Node::WHILE:
			resolve_while(static_cast<GDScriptParser::WhileNode *>(p_node));
			break;
		case GDScriptParser::Node::ANNOTATION:
			resolve_annotation(static_cast<GDScriptParser::AnnotationNode *>(p_node));
			break;
		case GDScriptParser::Node::ASSERT:
			resolve_assert(static_cast<GDScriptParser::AssertNode *>(p_node));
			break;
		case GDScriptParser::Node::MATCH:
			resolve_match(static_cast<GDScriptParser::MatchNode *>(p_node));
			break;
		case GDScriptParser::Node::MATCH_BRANCH:
			resolve_match_branch(static_cast<GDScriptParser::MatchBranchNode *>(p_node), nullptr);
			break;
		case GDScriptParser::Node::PARAMETER:
			resolve_parameter(static_cast<GDScriptParser::ParameterNode *>(p_node));
			break;
		case GDScriptParser::Node::PATTERN:
			resolve_match_pattern(static_cast<GDScriptParser::PatternNode *>(p_node), nullptr);
			break;
		case GDScriptParser::Node::RETURN:
			resolve_return(static_cast<GDScriptParser::ReturnNode *>(p_node));
			break;
		case GDScriptParser::Node::TYPE:
			resolve_datatype(static_cast<GDScriptParser::TypeNode *>(p_node));
			break;