Fix intermittent failing spec

spec/lib/spree/product_filters_spec.rb

@@ -4,7 +4,9 @@ describe Spree::ProductFilters do
   context "distributor filter" do
     it "provides filtering for all distributors" do
       3.times { create(:distributor_enterprise) }
-      Spree::ProductFilters.distributor_filter[:labels].should == Enterprise.is_distributor.sort.map { |d| [d.name, d.name] }
+      Enterprise.is_distributor.sort.map { |d| [d.name, d.name] }.each do |distributor|
+      	expect(Spree::ProductFilters.distributor_filter[:labels]).to include distributor
+      end
     end
   end
 end