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Code Issues 32 Releases Wiki Activity

Fixed #23594 -- Fixed deepcopy on ErrorList.

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Thanks Troy Grosfield for the report and Tim Graham for the tests.
This commit is contained in:
Loic Bistuer
2014-10-07 00:09:21 +07:00
parent 1edaa55201
commit ec2fd02bb3
3 changed files with 34 additions and 0 deletions
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9
django/forms/utils.py
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@@ -138,6 +138,15 @@ class ErrorList(UserList, list):
return list(error)[0]
return force_text(error)
def __reduce_ex__(self, *args, **kwargs):
# The `list` reduce function returns an iterator as the fourth element
# that is normally used for repopulating. Since we only inherit from
# `list` for `isinstance` backward compatibility (Refs #17413) we
# nullify this iterator as it would otherwise result in duplicate
# entries. (Refs #23594)
info = super(UserList, self).__reduce_ex__(*args, **kwargs)
return info[:3] + (None, None)
# Utilities for time zone support in DateTimeField et al.