### 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

‮
rpc_config["transfer_mode"] = MultiplayerPeer::TRANSFER_MODE_RELIABLE;
			} else if (mode == "unreliable") {
				rpc_config["transfer_mode"] = MultiplayerPeer::TRANSFER_MODE_UNRELIABLE;
			} else if (mode == "unreliable_ordered") {
				rpc_config["transfer_mode"] = MultiplayerPeer::TRANSFER_MODE_UNRELIABLE_ORDERED;
			} else {
				push_error(R"(Invalid RPC argument. Must be one of: 'call_local'/'call_remote' (local calls), 'any_peer'/'authority' (permission), 'reliable'/'unreliable'/'unreliable_ordered' (transfer mode).)", p_annotation);
			}
		}
	}
	function->rpc_config = rpc_config;
	return true;
}
GDScriptParser::DataType GDScriptParser::SuiteNode::Local::get_datatype() const {
	switch (type) {
		case CONSTANT:
			return constant->get_datatype();
		case VARIABLE:
			return variable->get_datatype();
		case PARAMETER:
			return parameter->get_datatype();
		case FOR_VARIABLE:
		case PATTERN_BIND:
			return bind->get_datatype();
		case UNDEFINED:
			return DataType();
	}
	return DataType();
}
String GDScriptParser::SuiteNode::Local::get_name() const {