* Fixed non-editable fields so that you can override the rendering
* Fixed bug where raw_data was sent to render_value when there was an error on the field
4.6.0
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* `Field` class now inherits from `object`, making the implementation more pythonic. (Attributes still possible to override in constructor call, see `NamespaceAwareObject`)
* Added `Form.extra` namespace for custom data.
4.5.0
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* Add `raw_data` and `raw_data_list` attributes to `Field` definition to enable custom handling on django file download
4.4.0
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* Set instance on form just after save to be able to use newly created pk in a redirect