Fixed #15570 -- Corrected a flaw in the design of the silent flag on {% cycle...

Fixed #15570 -- Corrected a flaw in the design of the silent flag on {% cycle %}. Thanks to Brian Neal for the report, and to Andrew and Jannis for the design consult.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15773 bcc190cf-cafb-0310-a4f2-bffc1f526a37