if ($since >= 0) {
$qb->andWhere('e.updatedAt > :since')->setParameter('since', new \DateTime(date('Y-m-d H:i:s', $since)));
-
+ }
+
if ('' !== $tags) {
foreach (explode(',', $tags) as $tag) {
$qb->andWhere('t.label = :label')->setParameter('label', $tag);