Added logic for nullable fields (transforms None => NONE)
Added logic for nullable fields (transforms None => NONE)

Mirantis/solar,loles/solar,Mirantis/solar,openstack/solar,zen/solar,Mirantis/solar,openstack/solar,Mirantis/solar,zen/solar,zen/solar,pigmej/solar,openstack/solar,zen/solar,loles/solar,loles/solar,pigmej/solar,pigmej/solar,loles/solar