The GitHub Actions job "Tests" on airflow.git has succeeded.
Run started by GitHub user uranusjr (triggered by uranusjr).

Head commit for run:
7f78a00eeb6efcda7253a9981470eb99f8785eb1 / Tzu-ping Chung <[email protected]>
Allow depth-first execution

The main thing is to make TriggerRuleDep to only count upstream task
instances with "relevant" map indexes, instead all of them. If a
downstream task instance is considered to only need cetain tis of an
upstream task (instead of all of them), the dependency analyzer will
mark the downstream as ready to execute when those selected tis are
finished, instead of needing to wait for all tis of that upstream task,
effectively enabling depth-first execution.

Most of the "relevant map indexes" logic is already in place when we
implemented XComArg resolution, so we just need to reuse that.

Tests will come later.

Report URL: https://github.com/apache/airflow/actions/runs/3528546389

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