[1.2.X] CZ Localflavor clean() incorrectly called super.__init__. Thanks for...

[1.2.X] CZ Localflavor clean() incorrectly called super.__init__. Thanks for the report and patch idangazit!

Backport of r14660 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@14661 bcc190cf-cafb-0310-a4f2-bffc1f526a37