Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1353436
Description of problem:
While performing upgrade from sat6.1.9 -> sat62 GA snap19, db:migration failed with error:

StandardError: An error has occurred, this and all later migrations canceled:

undefined local variable or method `openscap_proxy_id' for #<Hostgroup:0x0000000df0b150>/opt/rh/rh-ror41/root/usr/share/gems/gems/activemodel-4.1.5/lib/active_model/attribute_methods.rb:435:in `method_missing'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activerecord-4.1.5/lib/active_record/attribute_methods.rb:208:in `method_missing'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman_openscap-0.5.3.14/app/models/concerns/foreman_openscap/openscap_proxy_core_extensions.rb:66:in `openscap_proxy_has_feature'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activesupport-4.1.5/lib/active_support/callbacks.rb:424:in `block in make_lambda'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activesupport-4.1.5/lib/active_support/callbacks.rb:184:in `call'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activesupport-4.1.5/lib/active_support/callbacks.rb:184:in `block in simple'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activesupport-4.1.5/lib/active_support/callbacks.rb:185:in `call'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activesupport-4.1.5/lib/active_support/callbacks.rb:185:in `block in simple'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activesupport-4.1.5/lib/active_support/callbacks.rb:185:in `call'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activesupport-4.1.5/lib/active_support/callbacks.rb:185:in `block in simple'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activesupport-4.1.5/lib/active_support/callbacks.rb:185:in `call'

Version-Release number of selected component (if applicable):
sat62 GA snap19

How reproducible:
always

Steps to Reproduce:
0. Make sure openscap packages are installed on sat6.1
1. set Sat6.2 repo
2. katello-service stop
3. yum update -y
4. satellite-installer --scenario satellite --upgrade

Actual results:

Expected results:
db: migration succeed and installer should complete successfully

Additional info: