### 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_HINT) {
			ItemHint *hint = static_cast<ItemHint *>(item);
			if (r_description) {
				*r_description = hint->description;
			}
			return true;
		}
		item = item->parent;
	}
	return false;
}
Color RichTextLabel::_find_bgcolor(Item *p_item) {
	Item *item = p_item;
	while (item) {
		if (item->type == ITEM_BGCOLOR) {
			ItemBGColor *color = static_cast<ItemBGColor *>(item);
			return color->color;
		}
		item = item->parent;
	}
	return Color(0, 0, 0, 0);
}
Color RichTextLabel::_find_fgcolor(Item *p_item) {