def test_relation_tags
old_relation_v1 = create(:old_relation, :version => 1)
old_relation_v2 = create(:old_relation, :current_relation => old_relation_v1.current_relation, :version => 2)
def test_relation_tags
old_relation_v1 = create(:old_relation, :version => 1)
old_relation_v2 = create(:old_relation, :current_relation => old_relation_v1.current_relation, :version => 2)