fix: fast count improvements

Author: smarcet

app/Repositories/Summit/DoctrineSummitEventRepository.php

@@ -617,8 +617,6 @@ public function getFastCount(Filter $filter = null, Order $order = null){
 
         $query = $this->applyExtraJoins($query, $filter, $order);
 
-        $query = $this->applyExtraSelects($query, $filter, $order);
-
         if(!is_null($filter)){
             $filter->apply2Query($query, $this->getFilterMappings($filter));
         }
@@ -635,10 +633,6 @@ public function getFastCount(Filter $filter = null, Order $order = null){
 
         $query = $this->applyExtraFilters($query);
 
-        if(!is_null($order)){
-            $order->apply2Query($query, $this->getOrderMappings($filter));
-        }
-
         return (int) $query->getQuery()->getSingleScalarResult();
     }