kevinhongzl commented on code in PR #56346:
URL: https://github.com/apache/airflow/pull/56346#discussion_r2429960294
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airflow-core/src/airflow/serialization/serialized_objects.py:
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@@ -2981,6 +2982,8 @@ def _deepcopy_task(t) -> SerializedOperator:
return copy.deepcopy(t, memo)
# Compiling the unique list of tasks that made the cut
+ if exclude_original:
+ matched_tasks = []
Review Comment:
We calculate upstream and downstream tasks using task ids. Before this
change, the original task ids were returned along with relative task ids. This
clears all other mapped task instances that share the same task ids, even if
they are not specified. (For instance, if `["task_a", 1]` is included in a
payload, `["task_a"]` is returned and tis like`["task_a", 0]` and `["task_a",
2]` will be selected as well.) Therefore we should exclude the original task
ids, which is the `matched_task` here.
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