%checkout.row#checkout
  .small-12.medium-12.columns
    = render partial: "split_checkout/tabs"
    = render partial: "split_checkout/already_ordered" if @already_ordered
    = render partial: "split_checkout/form"

%checkout.row#checkout
  .small-12.medium-12.columns
    = render partial: "split_checkout/tabs"
    = render partial: "split_checkout/already_ordered" if @already_ordered && checkout_step?(:summary)
    = render partial: "split_checkout/form"

Add already ordered panel only on summary step
Add already ordered panel only on summary step
