[1.0.X] Fixed #10265: fixed a bug when generating a password reset token for a...

[1.0.X] Fixed #10265: fixed a bug when generating a password reset token for a user created on the same request. Thanks, crucialfelix. Backport of r10341 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10342 bcc190cf-cafb-0310-a4f2-bffc1f526a37