Fixes#608
`crashActor` collected the `releaseWorker` error but still marked the
actor `CRASHED` and cleared its `WorkerAssignment`, stranding the
still-assigned worker with no actor left to reclaim it. On a release
failure, return instead so the actor stays intact and the workflow's
retry reclaims the worker (`releaseWorker` is idempotent).
- [x] Tests pass
- [ ] Appropriate changes to documentation are included in the PR
Anish Ramasekar
775a5dfcae