@ -107,7 +107,7 @@ def convert_all_phone_fields(self, vals, fields_to_convert):
def get_phone_fields(self, vals):
fields_to_convert = []
for key in vals:
if isinstance(self._fields[key], Phone):
if isinstance(self._fields.get(key), Phone):
fields_to_convert.append(key)
return fields_to_convert