don't return null for not existing group id's

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/private/group/manager.php b/lib/private/group/manager.php
index 417be79ab30..a7e83f932d1 100644
--- a/lib/private/group/manager.php
+++ b/lib/private/group/manager.php
@@ -156,7 +156,10 @@ class Manager extends PublicEmitter implements IGroupManager {
 		foreach ($this->backends as $backend) {
 			$groupIds = $backend->getGroups($search, $limit, $offset);
 			foreach ($groupIds as $groupId) {
-				$groups[$groupId] = $this->get($groupId);
+				$group = $this->get($groupId);
+				if (!is_null($group)) {
+					$groups[$groupId] = $group;
+				}
 			}
 			if (!is_null($limit) and $limit <= 0) {
 				return array_values($groups);