Redirect to edit page on group transfer failure

app/controllers/groups_controller.rb

@@ -124,8 +124,8 @@ class GroupsController < Groups::ApplicationController
       flash[:notice] = "Group '#{@group.name}' was successfully transferred."
       redirect_to group_path(@group)
     else
-      flash.now[:alert] = service.error
-      render :edit
+      flash[:alert] = service.error
+      redirect_to edit_group_path(@group)
     end
   end
   # rubocop: enable CodeReuse/ActiveRecord

changelogs/unreleased/xanf-gitlab-ce-transfer-disables-js.yml

+---
+title: Group transfer now properly redirects to edit on failure
+merge_request: 26837
+author:
+type: fixed

spec/controllers/groups_controller_spec.rb

@@ -616,7 +616,7 @@ describe GroupsController do
       end
 
       it 'should redirect to the current path' do
-        expect(response).to render_template(:edit)
+        expect(response).to redirect_to(edit_group_path(group))
       end
     end