Mailer sends jira markup formatting as plain-text

I got an email updating me on Matt Quails comment on http://jira.atlassian.com/browse/FE-272 in which he used markup formatting on some text. The email passed through the markup as plain text, resulting in "prefixing with (?i) ." when I think it should have resulted in "prefixing with (?i) .", as rendered by the JIRA ui.