uranusjr commented on code in PR #59104:
URL: https://github.com/apache/airflow/pull/59104#discussion_r2870643208
##########
airflow-core/src/airflow/models/taskinstance.py:
##########
@@ -1897,6 +1897,27 @@ def xcom_pull(
).first()
if first is None: # No matching XCom at all.
return default
+
+ # Check if the task is actually mapped
+ target_task_id = task_ids if isinstance(task_ids, str) else
first.task_id
+ is_actually_mapped = False
+ # Get the task definition from the DAG
+ if self.task and self.task.dag:
+ dag = self.task.dag
+ if dag.has_task(target_task_id):
+ target_task = dag.task_dict[target_task_id]
+ is_actually_mapped = bool(getattr(target_task,
"is_mapped", False))
Review Comment:
I traced this a bit, it looks like the bug was introduced in
aaaea355d3adf430204d01f8fdb3bfafbd7c2bd9
It should likely be enough to simply add this back:
https://github.com/apache/airflow/commit/aaaea355d3adf430204d01f8fdb3bfafbd7c2bd9#diff-62f7d8a52fefdb8e05d4f040c6d3459b4a56fe46976c24f68843dbaeb5a98487L637-R607
(Also remove the two comment lines below)
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