Merge pull request #6551 from GawainLynch/hotfix/koalas-cant-count

[3.2] Reset GROUP BY and JOIN parameters for count()

src/Storage/Repository.php

@@ -97,6 +97,7 @@ public function count()
     {
         $qb = $this->getLoadQuery()
             ->select('COUNT(' . $this->getAlias() . '.id) as count')
+            ->resetQueryParts(['groupBy', 'join'])
         ;
         $result = $qb->execute()->fetchColumn(0);