Comment 5 for bug 1379998

I missed that my https://review.openstack.org/127794 change is actually the same as the one Doug already proposed in https://review.openstack.org/127754 and so have abandoned it.

I've proposed an optional revert of the unnecessary openstack/requirements change in https://review.openstack.org/127803 but testing indicates that at least pip does not factor != prerelease versions into its determination of whether it should consider prereleases sufficient to satisfy positive inclusive requirements, so while unnecessary the requirements pin is at least safe. As it's already merged and caused requirements update proposals to go out to all projects, I'm abandoning the revert in an attempt not to generate further unnecessary churn on those reviews.