Added clean_existing_user_not_equal_to_current to clean the backup Administrator field in an application.
Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed
from django.contrib import admin
from django.contrib.sites.models import Site
class SiteAdmin(admin.ModelAdmin):
list_display = ('domain', 'name')
search_fields = ('domain', 'name')
admin.site.register(Site, SiteAdmin)