- return cls.objects.filter(last_name=names[0], first_name='').first() or \
- cls.objects.filter(first_name=names[0], last_name='').first()
+ return cls.objects.filter(last_name_pl=names[0], first_name_pl='').first() or \
+ cls.objects.filter(first_name_pl=names[0], last_name_pl='').first() or \
+ cls.objects.filter(first_name_pl=literal, last_name_pl='').first() or \
+ cls.objects.filter(first_name_pl=literal, last_name_pl=None).first()