diff options
Diffstat (limited to 'django')
| -rw-r--r-- | django/db/models/expressions.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/django/db/models/expressions.py b/django/db/models/expressions.py index 307ee97db5..4ce869d80a 100644 --- a/django/db/models/expressions.py +++ b/django/db/models/expressions.py @@ -315,8 +315,10 @@ class BaseExpression: def relabeled_clone(self, change_map): clone = self.copy() - clone.set_source_expressions( - [e.relabeled_clone(change_map) for e in self.get_source_expressions()]) + clone.set_source_expressions([ + e.relabeled_clone(change_map) if e is not None else None + for e in self.get_source_expressions() + ]) return clone def copy(self): |