{"action":"created","comment":{"url":"https://api.github.com/repos/aspnet/EntityFramework/pulls/comments/84162245","pull_request_review_id":4957075,"id":84162245,"diff_hunk":"@@ -23,6 +24,27 @@ public QuerySqlServerTest(NorthwindQuerySqlServerFixture fixture, ITestOutputHel\n             //TestSqlLoggerFactory.CaptureOutput(testOutputHelper);\n         }\n \n+        [ConditionalFact]\n+        public virtual void Cache_key_expressions_are_detached()\n+        {\n+            WeakReference wr;\n+            MakeGarbage(CreateContext(), out wr);\n+\n+            GC.Collect();\n+\n+            Assert.False(wr.IsAlive);\n+        }\n+\n+        private static void MakeGarbage(NorthwindContext context, out WeakReference wr)\n+        {\n+            using (context)\n+            {\n+                wr = new WeakReference(context.Customers.First());","path":"test/Microsoft.EntityFrameworkCore.SqlServer.FunctionalTests/QuerySqlServerTest.cs","position":27,"original_position":27,"commit_id":"172584f7399a7d94a86894a56fb60211544669ac","original_commit_id":"172584f7399a7d94a86894a56fb60211544669ac","user":{"login":"divega","id":1253414,"avatar_url":"https://avatars.githubusercontent.com/u/1253414?v=3","gravatar_id":"","url":"https://api.github.com/users/divega","html_url":"https://github.com/divega","followers_url":"https://api.github.com/users/divega/followers","following_url":"https://api.github.com/users/divega/following{/other_user}","gists_url":"https://api.github.com/users/divega/gists{/gist_id}","starred_url":"https://api.github.com/users/divega/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/divega/subscriptions","organizations_url":"https://api.github.com/users/divega/orgs","repos_url":"https://api.github.com/users/divega/repos","events_url":"https://api.github.com/users/divega/events{/privacy}","received_events_url":"https://api.github.com/users/divega/received_events","type":"User","site_admin":false},"body":"@anpete I think I asked you yesterday but I don't remember the answer. What are the chances that different query operators from `First()` could introduce additional references to scoped services or state?","created_at":"2016-10-19T20:41:08Z","updated_at":"2016-10-19T20:41:08Z","html_url":"https://github.com/aspnet/EntityFramework/pull/6819#discussion_r84162245","pull_request_url":"https://api.github.com/repos/aspnet/EntityFramework/pulls/6819","_links":{"self":{"href":"https://api.github.com/repos/aspnet/EntityFramework/pulls/comments/84162245"},"html":{"href":"https://github.com/aspnet/EntityFramework/pull/6819#discussion_r84162245"},"pull_request":{"href":"https://api.github.com/repos/aspnet/EntityFramework/pulls/6819"}}},"pull_request":{"url":"https://api.github.com/repos/aspnet/EntityFramework/pulls/6819","id":90058136,"html_url":"https://github.com/aspnet/EntityFramework/pull/6819","diff_url":"https://github.com/aspnet/EntityFramework/pull/6819.diff","patch_url":"https://github.com/aspnet/EntityFramework/pull/6819.patch","issue_url":"https://api.github.com/repos/aspnet/EntityFramework/issues/6819","number":6819,"state":"open","locked":false,"title":"Query: Fix #6737 - Entities not being released","user":{"login":"anpete","id":1210944,"avatar_url":"https://avatars.githubusercontent.com/u/1210944?v=3","gravatar_id":"","url":"https://api.github.com/users/anpete","html_url":"https://github.com/anpete","followers_url":"https://api.github.com/users/anpete/followers","following_url":"https://api.github.com/users/anpete/following{/other_user}","gists_url":"https://api.github.com/users/anpete/gists{/gist_id}","starred_url":"https://api.github.com/users/anpete/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/anpete/subscriptions","organizations_url":"https://api.github.com/users/anpete/orgs","repos_url":"https://api.github.com/users/anpete/repos","events_url":"https://api.github.com/users/anpete/events{/privacy}","received_events_url":"https://api.github.com/users/anpete/received_events","type":"User","site_admin":false},"body":"- Fixed two places where compiled queries were inadvertently holding onto scoped QueryCompiler state:\r\n\r\n1) The query expression used in the compiled query cache key via EntityQueryable<> constant expressions.\r\n2) The compiled query delegate, via a capturing closure in QueryCompiler 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