### Godot version

4.1.rc.custom_build. c83f912bc

### System information

Ubuntu 22.04 CI

### Issue description

When executing
```
extends Node
func _process(delta):

	var temp_variable35241 = RichTextLabel.new()
	add_child(temp_variable35241)
	temp_variable35241.set_fit_content(true)
	temp_variable35241.parse_bbcode("3188932498")
	temp_variable35241.queue_free()
```
this code freeze project in CI for at least 60 seconds

### Steps to reproduce

Above

### Minimal reproduction project

N/A
Item *item = p_item;
	while (item) {
		if (item->type == ITEM_DROPCAP) {
			return static_cast<ItemDropcap *>(item);
		}
		item = item->parent;
	}
	return nullptr;
}
RichTextLabel::ItemList *RichTextLabel::_find_list_item(Item *p_item) {
	Item *item = p_item;
	while (item) {
		if (item->type == ITEM_LIST) {
			return static_cast<ItemList *>(item);
		}
		item = item->parent;
	}
	return nullptr;
}
int RichTextLabel::_find_list(Item *p_item, Vector<int> &r_index, Vector<ItemList *> &r_list) {