I am upgrading from Airflow 2.11.0 to Airflow 3.1.6 and noticed a change in behavior regarding the `ExternalTaskMarker`

I am upgrading from Airflow 2.11.0 to Airflow 3.1.6 and noticed a change in behavior regarding the `ExternalTaskMarker ` or maybe I am just using Airflow 3.1.6 wrong, so any help counts. In Airflow 2.11.0, when I cleared a task upstream of an `ExternalTaskMarker `(and selected the "Recursive" or "Downstream" clearing options), the corresponding ExternalTaskSensor in the child DAG would also be cleared. In Airflow 3, this relationship seems broken; clearing the parent task does not trigger a clear on the child task. We want to maintain task-level cross-DAG dependencies. While we are aware of the new Assets feature in Airflow 3, we specifically need the granular control provided by `ExternalTaskMarker` to ensure that re-running a specific parent task forces the child sensor to reset. **Environment**: Airflow Version: 3.0.x Executor: CeleryExecutor Python Version: 3.12 Ran on docker container setup locally Minimal working example: ``` # --- PARENT DAG --- from datetime import datetime from airflow import DAG from airflow.operators.bash import BashOperator from airflow.sensors.external_task import ExternalTaskMarker with DAG( dag_id='parent_dag', start_date=datetime(2026, 1, 18), schedule='@daily', catchup=False ) as parent_dag: task_1 = BashOperator( task_id='echo_hello', bash_command='echo HELLO!!!!' ) # Marker to point to child_dag/receive_call parent_trigger = ExternalTaskMarker( task_id='parent_trigger', external_dag_id='child_dag', external_task_id='receive_call' ) task_1 >> parent_trigger # --- CHILD DAG --- from airflow.sensors.external_task import ExternalTaskSensor with DAG( dag_id='child_dag', start_date=datetime(2026, 1, 18), schedule='@daily', catchup=False ) as child_dag: receive_call = ExternalTaskSensor( task_id='receive_call', external_dag_id='parent_dag', external_task_id='parent_trigger' ) child_task = BashOperator( …