Tim Sanders

### Apache Airflow version 2.3.3 ### What happened If you try to backfill a DAG that uses any [deferrable operators](https://airflow.apache.org/docs/apache-airflow/stable/concepts/deferring.html), those tasks will get indefinitely stuck in a "scheduled" state....

Dynamic Tasks inside of TaskGroup do not have group_id prepended to task_id

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### Apache Airflow version 2.3.3 (latest released) ### What happened As the title states, if you have dynamically mapped tasks inside of a `TaskGroup`, those tasks do not get the...

Dynamically mapped sensor with mode='reschedule' fails with violated foreign key constraint

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### Apache Airflow version 2.3.3 (latest released) ### What happened If you are using [Dynamic Task Mapping](https://airflow.apache.org/docs/apache-airflow/stable/concepts/dynamic-task-mapping.html) to map a Sensor with `.partial(mode='reschedule')`, and if that sensor fails its poke...

Checker program crash causes chained checkers output to be lost

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## Checklist - [X] I have checked existing issues for potential duplicates before creating this one. - [X] I have read the [Troubleshooting guide]. ## Bug description If you have...

"First-Time Git Setup" docs about .gitconfig are incorrect as of Git For Windows v2.24

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### There's no existing/similar bug report. - [X] I have searched the existing issues ### This report is about a single actionable bug. - [X] I'm reporting a single actionable...

Incorrect return type in on_failure() causes batch emails to silently fail

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Environment: - Python 3.7 - luigi 2.8.3 The docs for [`Task.on_failure`](https://luigi.readthedocs.io/en/stable/api/luigi.task.html#luigi.task.Task.on_failure) state: > The returned value of this method is json encoded and sent to the scheduler as the `expl`...

Exceptions in output()/complete() emit DEPENDENCY_MISSING events

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Environment: - Python 3.7 - luigi 2.8.3 As the title states, if an exception is thrown inside of `Task.output()` or `Task.complete()`, the worker will end up emitting a `DEPENDENCY_MISSING` event,...

Variable.get inside of a custom Timetable breaks the Scheduler

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### Apache Airflow version 2.3.4 ### What happened If you try to use `Variable.get` from inside of a custom Timetable, the Scheduler will break with errors like: ``` scheduler |...

All requests to the server are failing with error 503. Is this project dead?