### 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 *sizeitem = p_item;
	while (sizeitem) {
		if (sizeitem->type == ITEM_FONT_SIZE) {
			ItemFontSize *fi = static_cast<ItemFontSize *>(sizeitem);
			return fi;
		}
		sizeitem = sizeitem->parent;
	}
	return nullptr;
}
int RichTextLabel::_find_outline_size(Item *p_item, int p_default) {
	Item *sizeitem = p_item;
	while (sizeitem) {
		if (sizeitem->type == ITEM_OUTLINE_SIZE) {
			ItemOutlineSize *fi = static_cast<ItemOutlineSize *>(sizeitem);
			return fi->outline_size;
		}
		sizeitem = sizeitem->parent;
	}
	return p_default;
}
RichTextLabel::ItemDropcap *RichTextLabel::_find_dc_item(Item *p_item) {