Sparql Query2 creates incorrect count query

[yamalight]

Code:

$query = new Erfurt_Sparql_Query2();
$query->addProjectionVar(new Erfurt_Sparql_Query2_Var('resourceUri'));
$query->setCountStar(true);
$query->setDistinct();
$query->addElements(NavigationHelper::getInstancesTriples($uri, $setup));

Expected output:

SELECT ?resourceUri COUNT(DISTINCT ?resourceUri) 
WHERE { ... } 

Actual output:

SELECT DISTINCT COUNT(*) 
WHERE { ... } 

[white-gecko]

This is correct behavior, since you call $query->setCountStar(true);