It looks like openstack-glance-api and openstack-glance-registry do not longer require python-glance? openstack-glance-api and openstack-glance-registry only require openstack-glance-common. openstack-glance-api and openstack-glance-registry are not workable without python-glance. For me it does not makes sense to not install/require python-glance with openstack-glance-api and openstack-glance-registry.
Required dependency 'python-glance' is already added, here is respctive link for that: https://github.com/rdo-packages/glance-distgit/blob/rpm-master/openstack-glance.spec
This bug is against a Version which has reached End of Life. If it's still present in supported release (http://releases.openstack.org), please update Version and reopen.