Fix enterprise specs

Plus small refactor

app/controllers/admin/enterprises_controller.rb

@@ -85,6 +85,7 @@ module Admin
         end
       else
         load_tag_rule_types
+        load_tag_rules
         respond_with(@object) do |format|
           format.json {
             render json: { errors: @object.errors.messages }, status: :unprocessable_entity

spec/system/admin/enterprises_spec.rb

@@ -733,19 +733,16 @@ RSpec.describe '
             it_behaves_like "edit link with", "openfoodnetwork.org", "http://openfoodnetwork.org"
           end
 
-          shared_examples "edit link with invalid" do |url|
-            it "url: #{url}" do
-              fill_in "enterprise_white_label_logo_link", with: url
+          context "with an invalid link" do
+            it "can not edit white label logo link" do
+              fill_in "enterprise_white_label_logo_link", with: "invalid url"
               click_button 'Update'
-              expect(page)
-                .to have_content "Link for the logo used in shopfront '#{url}' is an invalid URL"
+              expect(page).to have_content(
+                "Link for the logo used in shopfront 'invalid url' is an invalid URL"
+              )
               expect(distributor1.reload.white_label_logo_link).to be_nil
             end
           end
-
-          context "can not edit white label logo link" do
-            it_behaves_like "edit link with invalid", "invalid url"
-          end
         end
 
         it "can check/uncheck the hide_groups_tab attribute" do