From d0afe97f13d029a8405885d9490f25c24d9b24b8 Mon Sep 17 00:00:00 2001
From: Pranav Kant <pranavk@collabora.co.uk>
Date: Sun, 20 Nov 2016 20:04:50 +0530
Subject: [PATCH] Handle non-existing edit_groups

---
 controller/documentcontroller.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/controller/documentcontroller.php b/controller/documentcontroller.php
index e03ff861..717d767c 100644
--- a/controller/documentcontroller.php
+++ b/controller/documentcontroller.php
@@ -483,13 +483,14 @@ class DocumentController extends Controller {
 			$updatable = false;
 			foreach($editGroups as $editGroup) {
 				$editorGroup = \OC::$server->getGroupManager()->get($editGroup);
-				if (sizeof($editorGroup->searchUsers($editorUid)) > 0) {
+				if ($editorGroup !== null && sizeof($editorGroup->searchUsers($editorUid)) > 0) {
 					\OC::$server->getLogger()->debug("Editor {editor} is in edit group {group}", [
 						'app' => $this->appName,
 						'editor' => $editorUid,
 						'group' => $editGroup
 					]);
 					$updatable = true;
+					break;
 				}
 			}
 		}