### 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
return Rect2(theme_cache.normal_style->get_offset(), get_size() - theme_cache.normal_style->get_minimum_size());
}
RichTextLabel::Item *RichTextLabel::_get_item_at_pos(RichTextLabel::Item *p_item_from, RichTextLabel::Item *p_item_to, int p_position) {
	int offset = 0;
	for (Item *it = p_item_from; it && it != p_item_to; it = _get_next_item(it)) {
		switch (it->type) {
			case ITEM_TEXT: {
				ItemText *t = static_cast<ItemText *>(it);
				offset += t->text.length();
				if (offset > p_position) {
					return it;
				}
			} break;
			case ITEM_NEWLINE: {
				offset += 1;
				if (offset == p_position) {
					return it;
				}
			} break;
			case ITEM_IMAGE: {
				offset += 1;
				if (offset > p_position) {
					return it;
				}
			} break;