{
 "flight": {
  "id": 25444,
  "agent": "github-copilot",
  "state": "open",
  "title": "Fix nullable Event<'Delegate, 'Args> for INotifyPropertyChanged implementations",
  "number": 18576,
  "source": "aidev",
  "commits": 6,
  "debrief": null,
  "outcome": "stale",
  "signals": [
   "aidev:Copilot"
  ],
  "index_ok": false,
  "additions": 509,
  "closed_at": null,
  "deletions": 266,
  "merged_at": null,
  "opened_at": "2025-05-20T07:50:27+00:00",
  "task_type": "fix",
  "body_chars": 3467,
  "confidence": "dataset",
  "updated_at": "2026-11-03T17:53:33.703657+00:00",
  "enriched_at": null,
  "body_excerpt": "## Issue\n\nWhen implementing `INotifyPropertyChanged` interface using the standard F# pattern with `Event<PropertyChangedEventHandler, PropertyChangedEventArgs>()`, a nullness warning is produced:\n\n```\nwarning FS3261: Nullness warning: The types 'System.Delegate' and 'System.Delegate | null' do not h",
  "review_count": 17,
  "files_changed": 28,
  "hours_to_merge": null,
  "metrics_source": "aidev_commit_sum",
  "change_requests": 1,
  "og_generated_at": null,
  "reviewer_excerpt": "Have a look at all unresolved comments and process them. They are the reason for the failing build",
  "review_comment_count": 20,
  "reviewer_excerpt_url": "https://github.com/dotnet/fsharp/pull/18576#issuecomment-2894249319"
 },
 "repo": {
  "name": "fsharp",
  "owner": "dotnet",
  "stars": 4348,
  "license": "MIT",
  "full_name": "dotnet/fsharp",
  "primary_language": "F#"
 },
 "author": {
  "login": "Copilot",
  "name": null,
  "github_profile": "https://github.com/Copilot",
  "page": null
 },
 "claim": null,
 "events": [
  {
   "at": null,
   "url": null,
   "kind": "committed",
   "actor_login": "copilot-swe-agent[bot]"
  },
  {
   "at": null,
   "url": null,
   "kind": "committed",
   "actor_login": "copilot-swe-agent[bot]"
  },
  {
   "at": null,
   "url": null,
   "kind": "reviewed",
   "actor_login": null
  },
  {
   "at": null,
   "url": null,
   "kind": "reviewed",
   "actor_login": null
  },
  {
   "at": null,
   "url": null,
   "kind": "reviewed",
   "actor_login": null
  },
  {
   "at": null,
   "url": null,
   "kind": "reviewed",
   "actor_login": null
  },
  {
   "at": null,
   "url": null,
   "kind": "committed",
   "actor_login": "copilot-swe-agent[bot]"
  },
  {
   "at": null,
   "url": null,
   "kind": "committed",
   "actor_login": "Tomas Grosup"
  },
  {
   "at": "2025-05-21T17:46:16+00:00",
   "url": "https://github.com/dotnet/fsharp/pull/18576#pullrequestreview-2857433607",
   "kind": "changes_requested",
   "actor_login": "T-Gro"
  }
 ],
 "related": [
  {
   "agent": "github-copilot",
   "state": "merged",
   "title": "Fix SignatureHash to include constant values in hash computation",
   "number": 18771,
   "outcome": "merged_clean",
   "index_ok": true,
   "additions": 792,
   "deletions": 271,
   "merged_at": "2025-07-29T11:18:16+00:00",
   "opened_at": "2025-07-21T15:05:27+00:00",
   "task_type": "fix",
   "files_changed": 71,
   "hours_to_merge": 188.21
  },
  {
   "agent": "github-copilot",
   "state": "merged",
   "title": "Fix IEquatable<T> nullness contravariance to match C# behavior",
   "number": 18770,
   "outcome": "merged_clean",
   "index_ok": true,
   "additions": 330,
   "deletions": 178,
   "merged_at": "2025-07-25T10:24:04+00:00",
   "opened_at": "2025-07-21T14:43:52+00:00",
   "task_type": "fix",
   "files_changed": 53,
   "hours_to_merge": 91.67
  },
  {
   "agent": "github-copilot",
   "state": "merged",
   "title": "Validate exception names for illegal characters using same mechanism as types/modules",
   "number": 18768,
   "outcome": "merged_after_rework",
   "index_ok": true,
   "additions": 318,
   "deletions": 165,
   "merged_at": "2025-07-29T10:26:12+00:00",
   "opened_at": "2025-07-21T13:27:01+00:00",
   "task_type": "fix",
   "files_changed": 20,
   "hours_to_merge": 188.99
  }
 ],
 "pr_url": "https://github.com/dotnet/fsharp/pull/18576",
 "page": "https://agentriders.com/logs/dotnet/fsharp/18576/"
}