Fix incorrect evaluation of transport filter setting

public/typo3conf/ext/ep_products/Classes/Domain/Repository/AbstractRepository.php

@@ -223,7 +223,7 @@ abstract class AbstractRepository extends Repository
     protected function addTransportationFilterConditions(QueryBuilder $qb, array $filterSettings): void
     {
         // Transportation
-        if (null !== $filterSettings['bus']) {
+        if (false === empty($filterSettings['bus'])) {
             $qb->andWhere($qb->expr()->eq('date.bus_available', 1));
         }
     }

public/typo3conf/ext/ep_products/Classes/Domain/Repository/ProductRepository.php

@@ -93,7 +93,7 @@ class ProductRepository extends AbstractRepository
 
         if (count($excludedConceptUids) > 0) {
             $qb->andWhere($qb->expr()->notIn(
-                'concept',
+                'date.concept',
                 $qb->createNamedParameter($excludedConceptUids, Connection::PARAM_INT_ARRAY))
             );
         }