Capping line item quantity at stock takes overrides into account

app/models/spree/line_item_decorator.rb

@@ -47,6 +47,7 @@ Spree::LineItem.class_eval do
 
 
   def cap_quantity_at_stock!
+    scoper.scope(variant)
     update_attributes!(quantity: variant.on_hand) if quantity > variant.on_hand
   end
 
@@ -129,7 +130,7 @@ Spree::LineItem.class_eval do
   def scoper
 	  return @scoper unless @scoper.nil?
 	  @scoper = OpenFoodNetwork::ScopeVariantToHub.new(order.distributor)
-	end
+  end
 
   def calculate_final_weight_volume
     if final_weight_volume.present? && quantity_was > 0

spec/models/spree/line_item_spec.rb

@@ -75,6 +75,19 @@ module Spree
         li.quantity.should == 10
         li.max_quantity.should == 10
       end
+
+      context "when a variant override is in place" do
+        let!(:hub) { create(:distributor_enterprise) }
+
+        before { li.order.update_attributes(distributor_id: hub.id) }
+
+        let!(:vo) { create(:variant_override, hub: hub, variant: v, count_on_hand: 2) }
+
+        it "caps quantity to override stock level" do
+          li.cap_quantity_at_stock!
+          li.quantity.should == 2
+        end
+      end
     end
 
     describe "tracking stock when quantity is changed" do