This looks like Bug #36462: Can't add hostgroup to new host - Katello - Foreman
Some commits from dates between RC1 and GA are missing in Katello 4.9 and 4.9.1, and it appears this is one of them.
cc @wbclark
This looks like Bug #36462: Can't add hostgroup to new host - Katello - Foreman
Some commits from dates between RC1 and GA are missing in Katello 4.9 and 4.9.1, and it appears this is one of them.
cc @wbclark