Fix spec that requires preference persistence

app/models/enterprise.rb

@@ -10,6 +10,7 @@ class Enterprise < ActiveRecord::Base
   # This is hopefully a temporary measure, pending the arrival of multiple named inventories
   # for shops. We need this here to allow hubs to restrict visible variants to only those in
   # their inventory if they so choose
+  # TODO: delegate this to a separate model instead of abusing Preferences.
   preference :product_selection_from_inventory_only, :boolean, default: false
 
   devise :confirmable, reconfirmable: true, confirmation_keys: [ :id, :email ]

spec/features/admin/enterprises_spec.rb

@@ -273,6 +273,10 @@ feature %q{
     before do
       Delayed::Job.destroy_all
       quick_login_as_admin
+
+      # This test relies on preference persistence, so we'll turn it on for this spec only.
+      # It will be turned off again automatically by reset_spree_preferences in spec_helper.
+      Spree::Preferences::Store.instance.persistence = true
     end
 
     it "refreshes the cache when I change what products appear on my shopfront" do