Wikimedia Bugzilla is closed!

I am working with Collaboration extension (got it from http://www.smwplus.com). The extension work with SMW 1.6.1, but running it with SMW 1.7.0.2 (or trunk) causes problems:

> Notice: Undefined index: sort in .../SemanticMediaWiki-trunk/includes/SMW_QueryProcessor.php on line 127
> Notice: Undefined index: order in .../SemanticMediaWiki-trunk/includes/SMW_QueryProcessor.php on line 127
> Catchable fatal error: Argument 1 passed to SMWQueryProcessor::getSortKeys() must be an array, null given, called in .../SemanticMediaWiki-trunk/includes/SMW_QueryProcessor.php on line 127 and defined in .../SemanticMediaWiki-trunk/includes/SMW_QueryProcessor.php on line 147

Call stack:

> #0 .../SemanticMediaWiki-trunk/includes/SMW_QueryProcessor.php(363):
> SMWQueryProcessor::createQuery('[[Category:Comm...', Array, 1, 'list', Array)
> #1 .../Collaboration/specials/Comment/CE_CommentParserFunctions.php(362):
> SMWQueryProcessor::getResultFromQueryString('[[Category:Comm...', Array, Array, 2)

Caller code:

> SMWQueryProcessor::processFunctionParams(
>     array("[[Category:Comment]] [[Belongs to article::" . $title->getFullText() . "]]",
>         "[[Has comment rating::+]]", "[[Comment was deleted::!true]]",
>         "?Has comment rating=", "format=list", "mainlabel=-", "searchlabel="
>     ),
>    $querystring, $params, $printouts
> );
> SMWQueryProcessor::getResultFromQueryString(
>     $querystring, $params, $printouts, SMW_OUTPUT_WIKI
> )

At the call time, $params contains 3 elements with indices 'format', 'mainlabe;, 'searchlabel' (as it was specified in original query). No default values are assigned to 'order' and 'sort'.

In SMW 1.6.1, everything described above is the same, but outcome is different: No PHP warnings, no errors.