I've tied a custom event listener to PhabricatorEventType::TYPE_DIFFERENTIAL_WILLEDITREVISION

I want to know if I can stop the event from continuing from my listener.

Throwing exceptions makes the UI not continue, but does the operation without reloading the page. As does die and trigger_error (even if fatal)

I guess my alternative is to try to recreate $revision to be in a state it was prior to the edit...

Thanks,
-alex