Fixed empty values of forms.JSONField and forms.UUIDField in docs.
@@ -787,7 +787,7 @@ For each field, we describe the default widget used if you don't specify
:class:`~django.db.models.JSONField`.
* Default widget: :class:`Textarea`
- * Empty value: ``''`` (an empty string)
+ * Empty value: ``None``
* Normalizes to: A Python representation of the JSON value (usually as a
``dict``, ``list``, or ``None``), depending on :attr:`JSONField.decoder`.
* Validates that the given value is a valid JSON.
@@ -1014,7 +1014,7 @@ For each field, we describe the default widget used if you don't specify
.. class:: UUIDField(**kwargs)
* Default widget: :class:`TextInput`
- * Empty value: ``''`` (an empty string)
+ * Empty value: ``None``
* Normalizes to: A :class:`~python:uuid.UUID` object.
* Error message keys: ``required``, ``invalid``
