- Affected version
 - 2.1.7
 
In 
	
	
	
		
				
			actionMember, there is this code;
		Code:
	
	$content = $this->filter('content', 'str');
if ($content && $searcher->isValidContentType($content))
{
   $query->inType($content);
   $constraints['content'] = $content;
}
...
$grouped = $this->filter('grouped', 'bool');
if ($grouped && $content && $searcher->isValidContentType($content))
{
   $typeHandler = $searcher->handler($content);
   $dummyConstraints = [];
   $query->forTypeHandler($typeHandler, $this->request, $dummyConstraints);
   $query->withGroupedResults();
}
	forTypeHandler is only called if grouped is true, which doesn't make sense for something like a thread content type.