From ae04a5adc5e2311f253d0b2177fab4e7a60d75cc Mon Sep 17 00:00:00 2001
From: Ralf Teusner <ralf.teusner@hpi.de>
Date: Mon, 3 Jul 2017 14:57:08 +0200
Subject: [PATCH] this should fix the "zombie file" bug. Turned out that the
 CodeOceanEditor object is not destroyed when navigating back and forth within
 the exercise context ( from an exercise back to the exercise index and
 forward to another exercise). Therefore, CodeOceanEditor.editors[] kept all
 "old" editors and added the new ones behind the old ones. On next autosave,
 they were persisted into a submission.

---
 app/assets/javascripts/editor/editor.js.erb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/assets/javascripts/editor/editor.js.erb b/app/assets/javascripts/editor/editor.js.erb
index 2ac499c4..e3e34462 100644
--- a/app/assets/javascripts/editor/editor.js.erb
+++ b/app/assets/javascripts/editor/editor.js.erb
@@ -182,6 +182,7 @@ configureEditors: function () {
   },
 
   initializeEditors: function () {
+    this.editors = [];
     $('.editor').each(function (index, element) {
 
       // Resize frame on load