Thread:Extension talk:DynamicPageList (Wikimedia)/Cannot transclude variables to DynamicPageList in templates

I want to use this in a template  namespace = redirect = none  But it doesn't work, nor as passed parameter. It doesn't even work on pages directly:  namespace = ordermethod = popularity order = descending redirect = none  The (main) namepsace is used instead. Bug? (MW 1.18 here)