anchor.diff:  <nav class="menu">
     <ul data-hook="admin_order_tabs">
  -    <% if ((can? :update, @order) && (@order.shipments.count == 0 || @order.shipped_shipments.count == 0)) %>
  +    <% if (@order.shipments.count == 0 || @order.shipped_shipments.count == 0) %>
         <li<%== ' class="active"' if current == 'Cart' %> data-hook='admin_order_tabs_order_details'>
           <%= link_to_with_icon 'shopping-cart', Spree.t(:cart), cart_admin_order_url(@order) %>
         </li>
  
positive.code:       <% end %>
      <% end %>
  
      <% if can?(:cancel, Spree::InventoryUnit) && @order.inventory_units.cancelable.present? %>
        <%= content_tag('li', :class => ('active' if current == 'Cancel Inventory'), :data => {:hook => 'admin_order_tabs_cancel_inventory'}) do %>
          <%= link_to_with_icon 'cancel', Spree.t(:cancel_inventory), admin_order_cancellations_path(@order) %>
        <% end %>
  
negative.code:       <% end %>
      <% end %>
  
      <% if can? :display, Spree::CustomerReturn %>
        <% if @order.completed? %>
          <li<%== ' class="active"' if current == 'Customer Returns' %>>
            <%= link_to_with_icon 'download', Spree.t(:customer_returns), admin_order_customer_returns_url(@order) %>
  