Cancellation after `Start` publication but before `StartAck` can strand the caller context and leave its remote task running. Make one shielded, bounded task-cancel request before dropping local startup state. Keep the private `cancel_on_startup` policy outside public target kwargs and disable it for the `_cancel_task` RPC itself so cleanup can not recursively cancel its own startup. Release each private helper context on exit and prove the caller-owned actor remains reusable after controlled startup cancellation. Caught-during: review remediation Found-via: `/run-tests` test_cancel_during_context_startup Review: PR #481 (opencode) https://github.com/goodboy/tractor/pull/481#pullrequestreview-4956692120 Prompt-IO: ai/prompt-io/opencode/20260818T193003Z_bf06b4f8_prompt_io.md (this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`)) |
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