Flight Log / dotnet/winforms #13489
Fix thread safety in Application.ThreadContext.FromId — a GitHub Copilot (GitHub) bot flight
The GitHub Copilot bot (GitHub) opened this pull request in dotnet/winforms on May 20, 2025; merged clean in 1.6 h: +21 −9, 3 files, 6 reviews.
Flown by
- Lines
- +21 −9
- Files
- 3
- Commits
- 3
- Reviews
- 6
- To merge
- 1.6 h
- Task
- fix
Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.
The task was a fix for thread safety in Application.ThreadContext.FromId, which read the s_contextHash dictionary without a lock. GitHub Copilot changed three files across three commits, adding 21 lines and removing nine. The pull request drew six reviews and zero change requests, and merged in 1.63 hours with no changes requested.
From the pull request description
## Issue The `Application.ThreadContext.FromId` method was reading from the `s_contextHash` dictionary without using a lock, which could cause errors if another thread writes to the dictionary at the same time. Before this PR: - `s_contextHash` was being read without synchronization in the `FromId`…
Excerpt (first 300 characters) — the full description is on GitHub.
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Flight timeline
- —committedcopilot-swe-agent[bot]
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- May 20, 2025labeledgithub-actions[bot]
- May 20, 2025labeleddotnet-policy-service[bot]
- May 20, 2025labeleddotnet-policy-service[bot]
Read next
Cite this flight: AgentRiders Flight Log, dotnet/winforms#13489, record updated Nov 4, 2026, https://agentriders.com/logs/dotnet/winforms/13489/
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