diff --git a/apps/user_ldap/lib/GroupPluginManager.php b/apps/user_ldap/lib/GroupPluginManager.php
index e905939ab4424..524cc81ad011a 100644
--- a/apps/user_ldap/lib/GroupPluginManager.php
+++ b/apps/user_ldap/lib/GroupPluginManager.php
@@ -163,11 +163,7 @@ public function countUsersInGroup(string $gid, string $search = ''): int {
 		$plugin = $this->which[GroupInterface::COUNT_USERS];
 
 		if ($plugin) {
-			$count = $plugin->countUsersInGroup($gid,$search);
-			if ($count === false) {
-				return 0; // no entry found
-			}
-			return $count;
+			return (int)$plugin->countUsersInGroup($gid, $search);
 		}
 		throw new \Exception('No plugin implements countUsersInGroup in this LDAP Backend.');
 	}
diff --git a/apps/user_ldap/lib/Group_LDAP.php b/apps/user_ldap/lib/Group_LDAP.php
index 57f2c4dfbe4ce..db6c3a9855e8a 100644
--- a/apps/user_ldap/lib/Group_LDAP.php
+++ b/apps/user_ldap/lib/Group_LDAP.php
@@ -1028,7 +1028,7 @@ public function countUsersInGroup(string $gid, string $search = ''): int {
 		$groupDN = $this->access->groupname2dn($gid);
 		if (!$groupDN) {
 			// group couldn't be found, return empty result set
-			$this->access->connection->writeToCache($cacheKey, false);
+			$this->access->connection->writeToCache($cacheKey, 0);
 			return 0;
 		}
 
@@ -1036,7 +1036,7 @@ public function countUsersInGroup(string $gid, string $search = ''): int {
 		$primaryUserCount = $this->countUsersInPrimaryGroup($groupDN, '');
 		if (!$members && $primaryUserCount === 0) {
 			//in case users could not be retrieved, return empty result set
-			$this->access->connection->writeToCache($cacheKey, false);
+			$this->access->connection->writeToCache($cacheKey, 0);
 			return 0;
 		}
 
diff --git a/apps/user_ldap/lib/Group_Proxy.php b/apps/user_ldap/lib/Group_Proxy.php
index 09d21d5cbac8f..7a55cec373d6d 100644
--- a/apps/user_ldap/lib/Group_Proxy.php
+++ b/apps/user_ldap/lib/Group_Proxy.php
@@ -311,13 +311,6 @@ public function getBackendName(): string {
 	}
 
 	public function searchInGroup(string $gid, string $search = '', int $limit = -1, int $offset = 0): array {
-		$users = [];
-
-		foreach ($this->backends as $backend) {
-			$backendUsers = $backend->searchInGroup($gid, $search, $limit, $offset);
-			$users = array_merge($users, $backendUsers);
-		}
-
-		return $users;
+		return $this->handleRequest($gid, 'searchInGroup', [$gid, $search, $limit, $offset]);
 	}
 }
diff --git a/tests/lib/Util/Group/Dummy.php b/tests/lib/Util/Group/Dummy.php
index 9882fc829ac41..99d4fc1a77505 100644
--- a/tests/lib/Util/Group/Dummy.php
+++ b/tests/lib/Util/Group/Dummy.php
@@ -35,7 +35,6 @@
 use OCP\Group\Backend\IRemoveFromGroupBackend;
 use OCP\Group\Backend\ICreateGroupBackend;
 use OCP\Group\Backend\ICountUsersBackend;
-use OCP\IUser;
 
 /**
  * Dummy group backend, does not keep state, only for testing use