[1.1.X] Fixed #11632: Fixed a test broken by r11827 that relied on the exact...

[1.1.X] Fixed #11632: Fixed a test broken by r11827 that relied on the exact (invalid HTML) id of an initial hidden input field. 


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.1.X@11836 bcc190cf-cafb-0310-a4f2-bffc1f526a37