Last modified: 2010-10-20 16:05:35 UTC
(Use a slow connection and / or computer, or open a very big page to test this) Open an edit page, and edit the content before the page is fully loaded. After the textbox is decorated by UsabilityInitiative, I cannot undo what I've done.
I'd say it's a duplicate of bug 21219. I guess something in the onload event flushes the undo history. *** This bug has been marked as a duplicate of bug 21219 ***