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https://issues.apache.org/jira/browse/AIRFLOW-984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeremiah Lowin resolved AIRFLOW-984.
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Resolution: Fixed
Fix Version/s: 1.9.0
Issue resolved by pull request #2152
[https://github.com/apache/incubator-airflow/pull/2152]
> Subdags unrecognized when subclassing SubDagOperator
> ----------------------------------------------------
>
> Key: AIRFLOW-984
> URL: https://issues.apache.org/jira/browse/AIRFLOW-984
> Project: Apache Airflow
> Issue Type: Bug
> Reporter: Patrick McKenna
> Priority: Minor
> Fix For: 1.9.0
>
>
> If a user subclasses SubDagOperator, the parent DAG will not pick up the
> subdags:
> https://github.com/apache/incubator-airflow/blob/c44e2009ee625ce4a82c50e585a3c8617d9b4ff8/airflow/models.py#L2974
> which means a DagBag won't find them:
> https://github.com/apache/incubator-airflow/blob/c44e2009ee625ce4a82c50e585a3c8617d9b4ff8/airflow/models.py#L311
> https://github.com/apache/incubator-airflow/blob/c44e2009ee625ce4a82c50e585a3c8617d9b4ff8/airflow/models.py#L365
> This PR appears to be the cause:
> https://github.com/apache/incubator-airflow/pull/1196/files.
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