old_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  from django.conf import settings
  import django.utils.timezone
  import user_clipboard.models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          migrations.swappable_dependency(settings.AUTH_USER_MODEL),
      ]
  
      operations = [
          migrations.CreateModel(
              name='Clipboard',
              fields=[
                  ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
                  ('file', models.FileField(max_length=128, upload_to=user_clipboard.models.new_file_upload_to)),
                  ('filename', models.CharField(default=b'', max_length=256, editable=False)),
                  ('is_image', models.BooleanField(default=False, db_index=True, editable=False)),
                  ('date_created', models.DateTimeField(default=django.utils.timezone.now, editable=False, db_index=True)),
                  ('user', models.ForeignKey(to=settings.AUTH_USER_MODEL, on_delete=models.CASCADE)),
              ],
              options={
                  'verbose_name': 'Clipboard Item',
                  'verbose_name_plural': 'Clipboard',
              },
          ),
      ]
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import migrations, models
  from django.conf import settings
  import django.utils.timezone
  import user_clipboard.models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          migrations.swappable_dependency(settings.AUTH_USER_MODEL),
      ]
  
      operations = [
          migrations.CreateModel(
              name='Clipboard',
              fields=[
                  ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
                  ('file', models.FileField(max_length=128, upload_to=user_clipboard.models.new_file_upload_to)),
                  ('filename', models.CharField(default='', max_length=256, editable=False)),
                  ('is_image', models.BooleanField(default=False, db_index=True, editable=False)),
                  ('date_created', models.DateTimeField(default=django.utils.timezone.now, editable=False, db_index=True)),
                  ('user', models.ForeignKey(to=settings.AUTH_USER_MODEL, on_delete=models.CASCADE)),
              ],
              options={
                  'verbose_name': 'Clipboard Item',
                  'verbose_name_plural': 'Clipboard',
              },
          ),
      ]
  
subject: Fix migrations (filename default value)