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  "title": "Add in-memory source text support for Range.DebugCode in F# Compiler Service",
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  "debrief": "GitHub Copilot was assigned to add in-memory source text support for Range.DebugCode in dotnet/fsharp, for tests that parse source from strings. The change spanned six files, with 148 additions and 11 deletions across three commits. The pull request was closed unmerged after human review, a burn. The reviewer wrote \"Yeah no\".",
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  "body_excerpt": "## Problem\n\nThe issue is that when debugging F# Compiler Service (FCS) tests, you can't see the actual source text content in range objects. This happens because the `Range.DebugCode` property tries to read source files from disk, but in FCS tests, source code is often parsed directly from strings w",
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   "title": "Fix SignatureHash to include constant values in hash computation",
   "number": 18771,
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   "title": "Fix IEquatable<T> nullness contravariance to match C# behavior",
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   "hours_to_merge": 91.67
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   "state": "merged",
   "title": "Validate exception names for illegal characters using same mechanism as types/modules",
   "number": 18768,
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   "merged_at": "2025-07-29T10:26:12+00:00",
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