From 4e1aca4e3c77d71913a512332a5b3d99f291a223 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn=20Friedrich=20Dreyer?= <jfd@butonic.de>
Date: Thu, 2 Mar 2017 11:36:20 +0100
Subject: [PATCH] don't store empty groupids

gives an exception on oracle and shouldn't be added in the first place

Signed-off-by: Morris Jobke <hey@morrisjobke.de>
---
 lib/private/SystemTag/SystemTagManager.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/private/SystemTag/SystemTagManager.php b/lib/private/SystemTag/SystemTagManager.php
index 7c21c0e004..d0854e885e 100644
--- a/lib/private/SystemTag/SystemTagManager.php
+++ b/lib/private/SystemTag/SystemTagManager.php
@@ -400,6 +400,9 @@ class SystemTagManager implements ISystemTagManager {
 					'gid' => $query->createParameter('gid'),
 				]);
 			foreach ($groupIds as $groupId) {
+				if ($groupId === '') {
+					continue;
+				}
 				$query->setParameter('gid', $groupId);
 				$query->execute();
 			}