Ticket #11411: fields.diff

fields.py

@@ -245 +245 @@
         if not self.required and value in EMPTY_VALUES:
             return None
         value = smart_str(value).strip()
+        if value == 'NaN':
+            raise ValidationError(self.error_messages['invalid'])
         try:
             value = Decimal(value)
         except DecimalException: