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https://issues.apache.org/jira/browse/AIRFLOW-5880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16973815#comment-16973815
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ASF GitHub Bot commented on AIRFLOW-5880:
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kaxil commented on pull request #6549: [AIRFLOW-5880] Enforce unique task ids
URL: https://github.com/apache/airflow/pull/6549
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> Enforce unique task ids
> -----------------------
>
> Key: AIRFLOW-5880
> URL: https://issues.apache.org/jira/browse/AIRFLOW-5880
> Project: Apache Airflow
> Issue Type: Improvement
> Components: core
> Affects Versions: 2.0.0
> Reporter: Bas Harenslak
> Assignee: Kaxil Naik
> Priority: Major
>
> Currently, task with equal ids in a DAG simply overwrite each other and the
> last assigned task is saved. This can lead to unexpected behaviour and an
> exception should be raised.
> We've had a PendingDeprecationWarning on this for 4 years, time to get rid of
> it:
> [https://github.com/apache/airflow/commit/385add2bf3eb7cd6103cfec0e5516234eeb72443]
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