liuxue0905

```python File "XXXXXXXXX/site-packages/django/db/models/fields/files.py", line 449, in update_dimension_fields width = file.width File "XXXXXXXXX/site-packages/django/core/files/images.py", line 19, in width return self._get_image_dimensions()[0] File "XXXXXXXXX/site-packages/django/core/files/images.py", line 28, in _get_image_dimensions self.open() File "XXXXXXXXX/django/db/models/fields/files.py", line 74, in...

Not only admin page, where ever use the model which include this ImageField cause this exception. Especially contain additional `width_field` `height_field` fields. ```python class ModelHasImageField(models.Model): ......... image_field = models.ImageField(width_field='width', height_field='height',...