old_contents: from django.contrib.auth.models import AnonymousUser
  from django.db import models
  from django.utils.translation import ugettext_lazy as _
  
  from adhocracy4.models.base import TimeStampedModel
  from adhocracy4.modules import models as module_models
  from apps.extprojects.models import ExternalProject
  
  
  class Bplan(ExternalProject):
      office_worker_email = models.EmailField()
  
  
  class AnonymousItem(TimeStampedModel):
      module = models.ForeignKey(module_models.Module, on_delete=models.CASCADE)
  
      @property
      def project(self):
          return self.module.project
  
      @property
      def creator(self):
          return AnonymousUser()
  
      @creator.setter
      def creator(self, value):
          pass
  
      class Meta:
          abstract = True
  
  
  class Statement(AnonymousItem):
  
      name = models.CharField(max_length=255,
                              verbose_name=_('Your Name'))
      email = models.EmailField(blank=True,
                                verbose_name=_('Email address'))
      statement = models.TextField(max_length=17500,
                                   verbose_name=_('Statement'))
  
      street_number = models.CharField(max_length=255,
                                       verbose_name=_('Street, House number'))
      postal_code_city = models.CharField(max_length=255,
                                          verbose_name=_('Postal code, City'))
  
      class Meta:
          ordering = ['-created']
  
new_contents: from django.contrib.auth.models import AnonymousUser
  from django.db import models
  from django.utils.translation import ugettext_lazy as _
  
  from adhocracy4.models.base import TimeStampedModel
  from adhocracy4.modules import models as module_models
  from apps.extprojects.models import ExternalProject
  
  
  class Bplan(ExternalProject):
      office_worker_email = models.EmailField(
          verbose_name=_('Office worker email')
      )
  
  
  class AnonymousItem(TimeStampedModel):
      module = models.ForeignKey(module_models.Module, on_delete=models.CASCADE)
  
      @property
      def project(self):
          return self.module.project
  
      @property
      def creator(self):
          return AnonymousUser()
  
      @creator.setter
      def creator(self, value):
          pass
  
      class Meta:
          abstract = True
  
  
  class Statement(AnonymousItem):
  
      name = models.CharField(max_length=255,
                              verbose_name=_('Your Name'))
      email = models.EmailField(blank=True,
                                verbose_name=_('Email address'))
      statement = models.TextField(max_length=17500,
                                   verbose_name=_('Statement'))
  
      street_number = models.CharField(max_length=255,
                                       verbose_name=_('Street, House number'))
      postal_code_city = models.CharField(max_length=255,
                                          verbose_name=_('Postal code, City'))
  
      class Meta:
          ordering = ['-created']
  
subject: add missing verbose_name for office_worker_email