Bug on 'Clear Spam Box'

[coralbridge]

Server details;
RedHat Enterprise 3 i686 - WHM X v3.1.0
WHM 10.0.0 cPanel 10.0.0-C52

When I hit 'clear spam box' in Spamassassin, system confirms that spam box has been cleared. However, it hasn't. Mail is still very much there for downloading.

[HostIt]

This is listed in bugzilla - http://bugzilla.cpanel.net/show_bug.cgi?id=1769

[spaceman]

When I click 'Clear Spam Box' I get the following 'page not found' style error (text on a plain white background):

---
Not Found

The server was not able to find the document (./frontend/xmail/mail/clearspambox.html) you requested
Please check the url and try again. You might also want to report
this error to your webhost.
---

Note that this particular hosting client is on a 'mail only' hosting account (cpanel 'xmail' module, as opposed to 'x'). Any suggestions anyone?

By way of a test, I just upgraded this account to a full hosting account, clicked the 'Clear Spam Box' button - and it worked fine. Must be a bug in the cpanel 'xmail' module.