Fix display_checkout_taxes_hash in invoice_table4 template

app/models/invoice/data_presenter.rb

@@ -65,6 +65,18 @@ class Invoice
       adjustments
     end
 
+    def display_checkout_taxes_hash
+      totals = OrderTaxAdjustmentsFetcher.new(nil).totals(all_tax_adjustments)
+
+      totals.map do |tax_rate, tax_amount|
+        {
+          amount: Spree::Money.new(tax_amount, currency: order.currency),
+          percentage: number_to_percentage(tax_rate.amount * 100, precision: 1),
+          rate_amount: tax_rate.amount,
+        }
+      end.sort_by { |tax| tax[:rate_amount] }
+    end
+
     def all_tax_adjustments
       all_eligible_adjustments.select { |a| a.originator_type == 'Spree::TaxRate' }
     end

app/services/order_tax_adjustments_fetcher.rb

@@ -7,8 +7,8 @@ class OrderTaxAdjustmentsFetcher
     @order = order
   end
 
-  def totals
-    order.all_adjustments.tax.each_with_object({}) do |adjustment, hash|
+  def totals(tax_adjustments = nil)
+    (tax_adjustments ||= order.all_adjustments.tax).each_with_object({}) do |adjustment, hash|
       tax_rate = adjustment.originator
       hash[tax_rate] = hash[tax_rate].to_f + adjustment.amount
     end

app/views/spree/admin/orders/_invoice_table4.html.haml

@@ -47,7 +47,7 @@
         %strong= @invoice_presenter.has_taxes_included ? t(:total_incl_tax) : t(:total_excl_tax)
       %td{:align => "right", :colspan => "2"}
         %strong= @invoice_presenter.has_taxes_included ? @invoice_presenter.display_total : @invoice_presenter.display_checkout_total_less_tax
-    - display_checkout_taxes_hash(@invoice_presenter).each do |tax|
+    - @invoice_presenter.display_checkout_taxes_hash.each do |tax|
       %tr
         %td{:align => "right", :colspan => "3"}
           = t(:tax_total, rate: tax[:percentage])