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Summary
A delayed shell result could overwrite another prompt or a later visit to the same variable. Tag each request with a generation and accept only results from the current request.
Related issues
No linked issue.
Verification
Four regression cases cover stale options and errors, with controls for current results. A focused race check and a real terminal interaction with a delayed shell result also pass.
Local checks passed on Go 1.27.1. The CI workflow uses Go 1.26.3.
Checklist
go build ./...andgo test ./...passgofmt -l .andgo vet ./...are cleancheatmd --lint examples/passes