[1.2.X] Fixed a test setup and isolation bug that was causing...

[1.2.X] Fixed a test setup and isolation bug that was causing PasswordResetTest to fail when run individually

Backport of [14455] from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@14457 bcc190cf-cafb-0310-a4f2-bffc1f526a37