mootools/mootools-core — pull request #2387 by kentaromiura (2012-07-30 19:04:03+00:00)
Title: fix bug #2310

IE7 clone node
(http://msdn.microsoft.com/en-us/library/ie/ms536365(v=vs.85).aspx)
have problem when cloning element with id attribute stetted.