Putting a url in a commit message can get cut-off in an invalid way

If I try to make a commit with a message like this: use some hacky non-documented celery option cause https://github.com/celery/celery/issues/1953 indicates that their documented method doesn't work in the overview it's rendered like this: use some hacky non-documented celery option cause <a href="https://github.co" rel="nofollow">https://github.co</a>.... As you can see it links to github.co, which is not what we want. A similar thing happens when we go to the commit detail page, it just gets cut-off in a different place. I would expect the resulting code to be something like this: use some hacky non-documented celery option cause <a href="https://github.com/celery/celery/issues/1953" rel="nofollow">https://github.co</a>...