Comment 9 for bug 1600393

I want to also throw this out there but don't consider it to be authoritative. I don't see the errors at all on Heat and Swift. Both of them have Mitakaish versions of the middleware (both are on M).

Swift is running python-keystonemiddleware 4.0.0-1~cloud0
Heat is running keystonemiddleware==4.4.1

Now, I say this with caution because neither service is exercised very much in our lab and so it's possible they just didn't get called enough to see it. But it is curious and bears some investigation.