diff options
Diffstat (limited to 'django/utils/datastructures.py')
| -rw-r--r-- | django/utils/datastructures.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/django/utils/datastructures.py b/django/utils/datastructures.py index 4656f60f2b..30ce28d38d 100644 --- a/django/utils/datastructures.py +++ b/django/utils/datastructures.py @@ -120,9 +120,11 @@ class SortedDict(dict): self.keyOrder = data.keys() else: self.keyOrder = [] + seen = set() for key, value in data: - if key not in self.keyOrder: + if key not in seen: self.keyOrder.append(key) + seen.add(key) def __deepcopy__(self, memo): return self.__class__([(key, deepcopy(value, memo)) |