Fixed #16612 -- Improved has_changed detection for localized field values

Thanks Simon Charette for the review.

1 files changed, 2 insertions, 2 deletions

diff --git a/django/forms/forms.py b/django/forms/forms.py
index 20a2e426bb..38601432bc 100644
--- a/django/forms/forms.py
+++ b/django/forms/forms.py
@@ -345,8 +345,8 @@ class BaseForm(object):
                 else:
                     initial_prefixed_name = self.add_initial_prefix(name)
                     hidden_widget = field.hidden_widget()
-                    initial_value = hidden_widget.value_from_datadict(
-                        self.data, self.files, initial_prefixed_name)
+                    initial_value = field.to_python(hidden_widget.value_from_datadict(
+                        self.data, self.files, initial_prefixed_name))
                 if hasattr(field.widget, '_has_changed'):
                     warnings.warn("The _has_changed method on widgets is deprecated,"
                         " define it at field level instead.",