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-rw-r--r--django/forms/fields.py6
1 files changed, 5 insertions, 1 deletions
diff --git a/django/forms/fields.py b/django/forms/fields.py
index f686b34a09..2823aaf53a 100644
--- a/django/forms/fields.py
+++ b/django/forms/fields.py
@@ -1068,7 +1068,11 @@ class MultiValueField(Field):
if not isinstance(initial, list):
initial = self.widget.decompress(initial)
for field, initial, data in zip(self.fields, initial, data):
- if field._has_changed(field.to_python(initial), data):
+ try:
+ initial = field.to_python(initial)
+ except ValidationError:
+ return True
+ if field._has_changed(initial, data):
return True
return False