### 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_PARAGRAPH) {
			ItemParagraph *p = static_cast<ItemParagraph *>(item);
			return p->st_parser;
		}
		item = item->parent;
	}
	return st_parser;
}
String RichTextLabel::_find_language(Item *p_item) {
	Item *item = p_item;
	while (item) {
		if (item->type == ITEM_PARAGRAPH) {
			ItemParagraph *p = static_cast<ItemParagraph *>(item);
			return p->language;
		}
		item = item->parent;
	}
	return language;
}
Color RichTextLabel::_find_color(Item *p_item, const Color &p_default_color) {