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  "title": "Deprecate BuildEventArgs.ThreadId and make it always return 0",
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  "debrief": "GitHub Copilot attempted a performance task in dotnet/msbuild to deprecate BuildEventArgs.ThreadId and make it always return 0. The change touched seven files across seven commits. The PR was closed unmerged after human review. The reviewer asked: \"Now the build fails due to error CS0618 do you plan to address it?\" Logged as a burn.",
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  "body_excerpt": "This PR deprecates the `BuildEventArgs.ThreadId` property as discussed in issue #6152 to improve performance and reduce memory usage.\n\n## Changes Made\n\n1. **Added `[Obsolete]` attribute** to the `ThreadId` property with a descriptive message indicating it will be removed in a future version\n2. **Cha",
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   "title": "Add comprehensive hang detection and diagnostics to CanceledTasksDoNotLogMSB4181 test",
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   "title": "Delete obsolete NormalizePathBadGlobalroot test",
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