rollback on dummy database now has no effect (previously raised an error). This means that custom 500 error pages (and e-mailed exceptions) now work even if a database has not been configured. Fixes #4429.
rollback on dummy database now has no effect (previously raised an error). This means that custom 500 error pages (and e-mailed exceptions) now work even if a database has not been configured. Fixes #4429.

git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@5410 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django