change default for autosave to false, fixes #4166

Closes #4166

Merge request studip/studip!3320

resources/assets/javascripts/lib/wiki.js

@@ -54,7 +54,7 @@ const Wiki = {
                             lastSaveDate: new Date(edit_container.dataset.chdate * 1000),
                             lastChangeDate: 0,
                             lastFocussedDate: 0,
-                            autosave: true
+                            autosave: false
                         };
                     },
                     methods: {