From 4ba23398c5822f5dca967384f1da1458d79adb11 Mon Sep 17 00:00:00 2001
From: Avi Schwab <schwab@palantir.net>
Date: Wed, 2 Aug 2017 09:06:22 -0500
Subject: [PATCH] Resolve string to array issue

---
 src/Element/LocalTasks.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Element/LocalTasks.php b/src/Element/LocalTasks.php
index c537af3..7ccb96b 100644
--- a/src/Element/LocalTasks.php
+++ b/src/Element/LocalTasks.php
@@ -54,6 +54,9 @@ public static function preRenderLocalTasks($element) {
       $tabs = $manager->getLocalTasks($route_name, $i);
 
       foreach (Element::getVisibleChildren($tabs['tabs']) as $tab_key) {
+        if (!is_array($element[$key])) {
+          $element[$key] = [];
+        }
         $element[$key][$tab_key] = $tabs['tabs'][$tab_key];
         $element[$key][$tab_key]['#theme'] = 'workbench_tabs_menu_local_task';
       }