Comment 5 for bug 1585243

I ran into those kind of issues on multiple upgrades since upgrading from Juno to Kilo etc.
At some point I prefer that we delete the repo containers as part of the upgrades and rebuild them freshly. But that also can cause issues in the case where 3rd party pips are build onto repo containers to include them into the release tree. I would vote for a rebuild approach including how to side load 3rd party pip packages like needed for cinder drivers etc.