200 | | The first time you call ``is_valid()`` or access the ``errors`` attribute of a |
201 | | ``ModelForm`` has always triggered form validation, but as of Django 1.2, it |
202 | | will also trigger :ref:`model validation <validating-objects>`. This has the |
203 | | side-effect of cleaning the model you pass to the ``ModelForm`` constructor. |
| 200 | Calling ``is_valid()`` or accessing the ``errors`` attribute of a ``ModelForm`` |
| 201 | has always triggered form validation. As of Django 1.2, it also triggers |
| 202 | :ref:`model validation <validating-objects>`. This has the side-effect of |
| 203 | cleaning the model you pass to the ``ModelForm`` constructor. |