CruiseControl.net - CCNetUser property empty

Looking at a recent build log I noticed the CCNetUser property is set to empty, should it not be the user who has requested the build?

<cruisecontrol project="...">
    <parameters>
        ....
        <parameter name="$CCNetUser" value="" />

I want the 开发者_如何学Cusername of the person who's just requested a force build so that I can send them an e-mail.

The CNetUser property can be empty if it's not a force build. If the build is triggered by a source control/project trigger then the property is empty. If the build is forced via the dashboard and not cctray the property may be empty too.