I just tried to add a comment to a review which included a link that contained an asterisk. Once saved, the link in the comment was cut off just before the asterisk. According to RFC1738 however, an unescaped asterisk is valid as part of a URL.

For reference, the link in question was to an entry in our ELK (elasticsearch + logstash + kibana) installation, which looks something like: https://logs.mycompany.com/app/kibana#/doc/logstash-*/logstash-2016.06.22/cms-log/?id=XXXXXXXX
In my comment in Crucible, the href on the link was simply reduced to https://logs.mycompany.com/app/kibana#/doc/logstash-

I even tried enclosing it in square brackets, but to no avail.