          self.assertEqual(instance.width, None)
          self.assertEqual(instance.height, None)
  
          f = OptionalImageFileForm(
                  data={'description': 'And a final one'},
                  files={'image': SimpleUploadedFile('test3.png', image_data)}, instance=instance)
          self.assertEqual(f.is_valid(), True)
          instance = f.save()
          self.assertEqual(instance.image.name, 'tests/test3.png')
          self.assertEqual(instance.width, 16)
          self.assertEqual(instance.height, 16)
 
</s> remove                 data={'description': 'And a final one'},
                files={'image': SimpleUploadedFile('test4.png', image_data2)}
 </s> add             data={'description': 'And a final one'},
            files={'image': SimpleUploadedFile('test4.png', image_data2)} </s> remove                 data={'description': 'New Description'},
                instance=instance)
 </s> add             data={'description': 'New Description'},
            instance=instance) </s> remove                 data={'description': 'Changed it'},
                files={'image': SimpleUploadedFile('test2.png', image_data2)}, instance=instance)
 </s> add             data={'description': 'Changed it'},
            files={'image': SimpleUploadedFile('test2.png', image_data2)}, instance=instance) </s> remove                 data={'description': 'Changed it'},
                files={'image': SimpleUploadedFile('test2.png', image_data2)})
 </s> add             data={'description': 'Changed it'},
            files={'image': SimpleUploadedFile('test2.png', image_data2)}) </s> remove                 data={'description': 'And a final one', 'path': 'foo'},
                files={'image': SimpleUploadedFile('test4.png', image_data)})
 </s> add             data={'description': 'And a final one', 'path': 'foo'},
            files={'image': SimpleUploadedFile('test4.png', image_data)})
            data={'description': 'And a final one'},
            files={'image': SimpleUploadedFile('test3.png', image_data)}, instance=instance)
          self.assertEqual(instance.width, None)
          self.assertEqual(instance.height, None)
  
          f = OptionalImageFileForm(
            data={'description': 'And a final one'},
            files={'image': SimpleUploadedFile('test3.png', image_data)}, instance=instance)
            data={'description': 'And a final one'},
            files={'image': SimpleUploadedFile('test3.png', image_data)}, instance=instance)
          self.assertEqual(f.is_valid(), True)
          instance = f.save()
          self.assertEqual(instance.image.name, 'tests/test3.png')
          self.assertEqual(instance.width, 16)
          self.assertEqual(instance.height, 16)
keep keep keep keep replace replace keep keep keep keep keep
 Fixed #21288 -- Fixed E126 pep8 warnings 
tests/model_forms/tests.py