Redirect forms-runner to 'Edit question routes' page when multiple branches enabled

app/controllers/forms/redirect_from_forms_runner_controller.rb

@@ -10,7 +10,12 @@ def edit_question
   def routes
     page_external_id = params.require(:page_external_id)
     page = current_form.pages.find_by!(external_id: page_external_id)
-    redirect_to show_routes_path(current_form.id, page.id)
+
+    if FeatureService.new(group: current_form.group).enabled?(:multiple_branches)
+      redirect_to routes_path(current_form.id, anchor: page.page_position_id)
+    else
+      redirect_to show_routes_path(current_form.id, page.id)
+    end
   end
 
 private

spec/requests/forms/redirect_from_forms_runner_controller_spec.rb

@@ -81,8 +81,16 @@
         expect(response).to have_http_status(302)
       end
 
-      it "redirects to the show routes page" do
-        expect(response).to redirect_to(show_routes_path(form_id: form.id, page_id: page.id))
+      context "when the multiple branches feature is not enabled", feature_multiple_branches: false do
+        it "redirects to the show routes page" do
+          expect(response).to redirect_to(show_routes_path(form_id: form.id, page_id: page.id))
+        end
+      end
+
+      context "when the multiple branches feature is enabled", :feature_multiple_branches do
+        it "redirects to the edit routes page" do
+          expect(response).to redirect_to(routes_path(form_id: form.id, anchor: page.page_position_id))
+        end
       end
     end