### 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

‮
GDScriptParser::FunctionNode *parent_function = parser->current_function;
			while (parent_function->source_lambda) {
				parent_function = parent_function->source_lambda->parent_function;
			}
			push_error(vformat(R"*(Cannot access %s "%s" from the static function "%s()".)*", source_is_signal ? "signal" : "instance variable", p_identifier->name, parent_function->identifier->name), p_identifier);
		}
		if (!lambda_stack.is_empty()) {
			
			if (source_is_variable || source_is_signal) {
				mark_lambda_use_self();
				return; 
			}
			
			
			if (p_identifier->source == GDScriptParser::IdentifierNode::UNDEFINED_SOURCE || p_identifier->source == GDScriptParser::IdentifierNode::MEMBER_CONSTANT) {
				return;
			}
			GDScriptParser::FunctionNode *function_test = lambda_stack.back()->get()->function;
			
			
			while (function_test != nullptr && function_test != p_identifier->source_function && function_test->source_lambda != nullptr && !function_test->source_lambda->captures_indices.has(p_identifier->name)) {
				function_test->source_lambda->captures_indices[p_identifier->name] = function_test->source_lambda->captures.size();
				function_test->source_lambda->captures.push_back(p_identifier);
				function_test = function_test->source_lambda->parent_function;
			}
		}
		return;
	}
	StringName name = p_identifier->name;