### 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
prefix = "." + prefix;
		}
		String segment;
		if (list_items[i]->list_type == LIST_DOTS) {
			prefix = list_items[i]->bullet;
			break;
		} else if (list_items[i]->list_type == LIST_NUMBERS) {
			segment = itos(list_index[i]);
			if (is_localizing_numeral_system()) {
				segment = TS->format_number(segment, _find_language(l.from));
			}
		} else if (list_items[i]->list_type == LIST_LETTERS) {
			segment = _letters(list_index[i], list_items[i]->capitalize);
		} else if (list_items[i]->list_type == LIST_ROMAN) {
			segment = _roman(list_index[i], list_items[i]->capitalize);
		}
		if (rtl) {
			prefix = prefix + segment;
		} else {
			prefix = segment + prefix;
		}
	}
	if (!prefix.is_empty()) {
		Ref<Font> font = theme_cache.normal_font;
		int font_size = theme_cache.normal_font_size;
		ItemFont *font_it = _find_font(l.from);
		if (font_it) {
			if (font_it->font.is_valid()) {
				font = font_it->font;
			}