Getting unparsed message when try to create a new user, which is blocked by TitleBlacklist:

Account creation error
The user name "Maaaaaaaaaaaaaaaaaaaaa" <a href="/wiki/MediaWiki_talk:Titleblacklist" title="MediaWiki talk:Titleblacklist">has been blacklisted</a> from creation. Wikipedia <a href="/wiki/Wikipedia:U" title="Wikipedia:U" class="mw-redirect">username policy</a> does not allow names that are misleading, promotional, offensive or disruptive. Please select another username that complies with <a href="/wiki/Wikipedia:U" title="Wikipedia:U" class="mw-redirect">policy</a>, or if you want to seek approval for a username, you can do so by filing a request at <a href="/wiki/Wikipedia:Request_an_account" title="Wikipedia:Request an account">Wikipedia:Request an account</a>.

I have found bug 41242, but looks like something breaks it (again).

Version: unspecified
Severity: normal