Blacklist registration on source installs too
Blacklist registration on source installs too

This will almost certainly be necessary too.

bcrochet/instack-undercloud,eprasad/instack-undercloud,dpkshetty/instack-undercloud,rdo-management/instack-undercloud,agroup/instack-undercloud,eprasad/instack-undercloud,dpkshetty/instack-undercloud,rdo-management/instack-undercloud,dmsimard/instack-undercloud,bcrochet/instack-undercloud,agroup/instack-undercloud,dmsimard/instack-undercloud