yuqian90 opened a new pull request #7276: [AIRFLOW-5391] Do not run skipped tasks when they are cleared URL: https://github.com/apache/airflow/pull/7276 This PR fixes the following issue: If a task is skipped by ``BranchPythonOperator``, ``BaseBranchOperator`` orr ``ShortCircuitOperator`` and the user then clears the skipped task, it'll execute. After this PR: The ``NotPreviouslySkippedDep`` rule will first evaluate if a task has a direct ``SkipMixin`` parent that has decided to skip it. This is done by examining the XCom data stored by ``SkipMixin.skip()`` or ``SkipMixin.skip_all_except()``. The implementation is inspired by the author of [this blog](https://blog.diffractive.io/2018/08/07/replacement-shortcircuitoperator-for-airflow/). --- Issue link: [AIRFLOW-5391](https://issues.apache.org/jira/browse/AIRFLOW-5391) Make sure to mark the boxes below before creating PR: [x] - [x] Description above provides context of the change - [x] Commit message/PR title starts with `[AIRFLOW-NNNN]`. AIRFLOW-NNNN = JIRA ID<sup>*</sup> - [x] Unit tests coverage for changes (not needed for documentation changes) - [x] Commits follow "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)" - [x] Relevant documentation is updated including usage instructions. - [x] I will engage committers as explained in [Contribution Workflow Example](https://github.com/apache/airflow/blob/master/CONTRIBUTING.rst#contribution-workflow-example). <sup>*</sup> For document-only changes commit message can start with `[AIRFLOW-XXXX]`. --- In case of fundamental code change, Airflow Improvement Proposal ([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvements+Proposals)) is needed. In case of a new dependency, check compliance with the [ASF 3rd Party License Policy](https://www.apache.org/legal/resolved.html#category-x). In case of backwards incompatible changes please leave a note in [UPDATING.md](https://github.com/apache/airflow/blob/master/UPDATING.md). Read the [Pull Request Guidelines](https://github.com/apache/airflow/blob/master/CONTRIBUTING.rst#pull-request-guidelines) for more information.
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