ashb commented on a change in pull request #20931:
URL: https://github.com/apache/airflow/pull/20931#discussion_r787578055
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File path: airflow/serialization/serialized_objects.py
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@@ -970,6 +997,14 @@ def deserialize_dag(cls, encoded_dag: Dict[str, Any]) ->
'SerializedDAG':
if serializable_task.subdag is not None:
setattr(serializable_task.subdag, 'parent_dag', dag)
+ if isinstance(task, MappedOperator):
+ for d in (task.mapped_kwargs, task.partial_kwargs):
+ for k in d:
+ if not isinstance(d[k], _XcomRef):
+ continue
+
+ d[k] = XComArg(operator=dag.get_task(d[k].task_id),
key=d[k].key)
Review comment:
Oh yes, probably. Last night I was thinking we can't change the dict in
place, but that's only the case for adding/removing items, but changing
existing ones will be fine.
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