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<@ULVA73B9P> I have a flow run that runs a subflow:
```def outer_flow():
   inner_flow.with_options(
        persist_result=True,
        on_cancellation=[cancellation_callback]
   )```
If I cancel the outer flow from the Prefect UI, it seems like the on_cancellation hook for the inner_flow subflow does not run. Why is this? How can I ensure that a subflow's on_cancellation hook runs when it's parent flow is cancelled?

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