one of my own personal habits is to include the full non truncated title in a comment if the title is too long, this would also demonstrate the title at time of submission, so this would also make it evident that the title has been changed by the site operator.
something that was pointed out too me earlier was the two different titles associated with a page, are both acceptable to title a submission.
re:[https://news.ycombinator.com/item?id=26638804]