Fixed #2127 -- Made datetime filters fail silently when passed empty strings or None. Thanks, Gary Wilson.
Fixed #2127 -- Made datetime filters fail silently when passed empty strings or
None. Thanks, Gary Wilson.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%403117

adieu/django-nonrel,adieu/django-nonrel,adieu/django-nonrel