bogus "Log in to comment" link

On https://bitbucket.org/site/master/issues/1, the "Log in to comment" URL is almost 3 kilobytes long and it looks like this:
https://bitbucket.org/account/signin/?next=%3Cbound%20method%20WSGIRequest.get_full_path%20of%20%3CWSGIRequest%0Apath%3A/site/master/issues/1%2C%0AGET%3A%3CQueryDict ... I don't think that's right.