Add failing spec for payment and shipment states bug

The order was being left in an unexpected condition here, it's states are not set and there seem to be some weird issues.

spec/features/admin/payments_spec.rb

@@ -35,4 +35,33 @@ feature '
       expect(page).to have_content I18n.t(:new_payment)
     end
   end
+
+  context "creating an order's first payment via admin", js: true do
+    before do
+      order.update_columns(
+        state: "payment",
+        payment_state: nil,
+        shipment_state: nil,
+        completed_at: nil
+      )
+    end
+
+    xit "creates the payment, completes the order, and updates payment and shipping states" do
+      login_as_admin_and_visit spree.new_admin_order_payment_path order
+
+      expect(page).to have_content "New Payment"
+
+      within "#new_payment" do
+        find('input[type="radio"]').click
+      end
+
+      click_button "Update"
+      expect(page).to have_content "Payments"
+
+      order.reload
+      expect(order.state).to eq "complete"
+      expect(order.payment_state).to eq "balance_due"
+      expect(order.shipment_state).to eq "pending"
+    end
+  end
 end