Board Thread:Support Requests - Getting Technical/@comment-33561080-20160714104413/@comment-3359255-20160714110652

You can't. You just have to start editing again so that the list fills up with new edits. If you click on the pink link under "RECENT WIKI ACTIVITY" that says "See all activity" you can still see all the edits that happened. They are just displayed less cute on that section, but they are not wiped at least.