Just for future reference when a user has put up this notice on an article:
This page is actively undergoing a major edit for a short while. As a courtesy, please do not edit this page while this message is displayed. The user who added this notice will be listed in the page history. If this page has not been edited for several hours, please remove this template. This message is intended to help reduce edit conflicts; please remove it between editing sessions to allow others to edit the page.
it's best not to edit it. They could be in the middle of a large edit and you may conflict them. Thanks --Pokemaster97 01:19, 14 April 2011 (UTC)