Fixed #10470 -- Fixed a race condition in middleware initialization.
Fixed #10470 -- Fixed a race condition in middleware initialization.

Thanks to Travis Terry and mrts.

git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@10036 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django