old_contents: from django.db import migrations
  
  import waldur_core.core.fields
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('core', '0007_changeemailrequest'),
      ]
  
      operations = [
          migrations.AddField(
              model_name='changeemailrequest',
              name='uuid',
              field=waldur_core.core.fields.UUIDField(null=True),
          ),
      ]
  
new_contents: from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('core', '0007_changeemailrequest'),
      ]
  
      operations = [
          migrations.AddField(
              model_name='changeemailrequest', name='uuid', field=models.UUIDField(),
          ),
      ]
  
subject: Fix UUID field migration for change email request model.