Make product set raise error and inform the user something went wrong and keep bugsnag notification so we can get more information about what's going on

app/models/spree/product_set.rb

@@ -101,6 +101,7 @@ class Spree::ProductSet < ModelSet
       variant.on_hand = on_hand.to_i if on_hand.present?
     rescue StandardError => error
       notify_bugsnag(error, product, variant, variant_attributes)
+      raise error
     end
   end
 

spec/models/spree/product_set_spec.rb

@@ -116,11 +116,11 @@ describe Spree::ProductSet do
                 attributes_for(:variant).merge(unit_value: nil, on_hand: 1, sku: '321')
               end
 
-              it 'does not create variant and notifies bugsnag without raising exception' do
+              it 'does not create variant and notifies bugsnag still raising the exception' do
                 expect(Bugsnag).to receive(:notify)
                 number_of_variants = Spree::Variant.all.size
                 expect { product_set.save }
-                  .not_to raise_error(StandardError)
+                  .to raise_error(StandardError)
                 expect(Spree::Variant.all.size).to eq number_of_variants
                 expect(Spree::Variant.last.sku).not_to eq('321')
               end