I've noticed the test checking if there's a %clean section in the SPEC file always passes, no matter if there's one or not.
The 17f7f97 commit is affected but I think this is quite an old bug.
I've just hit it with the following: {{{ 46 %clean 47 rm -rf $RPM_BUILD_ROOT }}} https://bugzilla.redhat.com/show_bug.cgi?id=794988
Fixed in http://git.fedorahosted.org/git?p=FedoraReview.git;a=commit;h=db43387027ef19f83fd8142ab550acee73cc69e5