Description of problem:
Sahara being removed in OSP16 we need a mechanism to prevent 15-16 upgrade and FFU (13->16) for environment that enabled Sahara.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
According to our records, this should be resolved by python-tripleoclient-12.3.2-0.20200130192329.78ac810.el8ost. This build is available now.
According to our records, this should be resolved by openstack-tripleo-common-11.3.3-0.20200121231250.3c68b48.el8ost. This build is available now.