If you set up front_page to manage the front page for a role and then remove that role, the admin/config/front/arrange page gives a notice:
Notice: Undefined index: name in front_page_admin_arrange_form() (line 190 of /var/www/milk/sites/all/modules/front/front_page.admin.inc).
Steps to reproduce:
- Create a role
- Set the front page module to handle the front page for the role you just created
- Remove the role that you created in step 1
admin/people/permissions/roles/edit/n(where n is the rid)
- Check the front page arrange tab