Enhanced TagRepositoryTest and replaced inlined quoting by doctrine connection quoting

module/Core/src/Repository/VisitRepository.php

@@ -142,7 +142,7 @@ class VisitRepository extends EntitySpecificationRepository implements VisitRepo
         $qb->from(Visit::class, 'v')
            ->join('v.shortUrl', 's')
            ->join('s.tags', 't')
-           ->where($qb->expr()->eq('t.name', '\'' . $tag . '\'')); // This needs to be concatenated, not bound
+           ->where($qb->expr()->eq('t.name', $this->getEntityManager()->getConnection()->quote($tag)));
 
         if ($filtering->excludeBots()) {
             $qb->andWhere($qb->expr()->eq('v.potentialBot', 'false'));

module/Core/src/ShortUrl/Spec/BelongsToApiKeyInlined.php

@@ -17,6 +17,7 @@ class BelongsToApiKeyInlined implements Filter
     public function getFilter(QueryBuilder $qb, string $dqlAlias): string
     {
         // Parameters in this query need to be inlined, not bound, as we need to use it as sub-query later
-        return $qb->expr()->eq('s.authorApiKey', '\'' . $this->apiKey->getId() . '\'')->__toString();
+        $conn = $qb->getEntityManager()->getConnection();
+        return $qb->expr()->eq('s.authorApiKey', $conn->quote($this->apiKey->getId()))->__toString();
     }
 }

module/Core/src/ShortUrl/Spec/BelongsToDomainInlined.php

@@ -16,6 +16,7 @@ class BelongsToDomainInlined implements Filter
     public function getFilter(QueryBuilder $qb, string $context): string
     {
         // Parameters in this query need to be inlined, not bound, as we need to use it as sub-query later
-        return $qb->expr()->eq('s.domain', '\'' . $this->domainId . '\'')->__toString();
+        $conn = $qb->getEntityManager()->getConnection();
+        return $qb->expr()->eq('s.domain', $conn->quote($this->domainId))->__toString();
     }
 }