Invalidate external login session on removal of provider (16) (#19289)

* Cherry-pick from 13 and adjust.

* Resolve circular dependency references and clear OpenIddict tokens on purging sessions associated with removed login providers.

* Removed out of date comment.

* Removed incorrect casing update for SQLite.

tests/Umbraco.Tests.UnitTests/Umbraco.Core/Extensions/IntExtensionsTests.cs

@@ -0,0 +1,41 @@
+// Copyright (c) Umbraco.
+// See LICENSE for more details.
+
+using NUnit.Framework;
+using Umbraco.Extensions;
+
+namespace Umbraco.Cms.Tests.UnitTests.Umbraco.Core.Extensions;
+
+[TestFixture]
+public class IntExtensionsTests
+{
+    [TestCase(20, "00000014-0000-0000-0000-000000000000")]
+    [TestCase(106, "0000006a-0000-0000-0000-000000000000")]
+    [TestCase(999999, "000f423f-0000-0000-0000-000000000000")]
+    [TestCase(555555555, "211d1ae3-0000-0000-0000-000000000000")]
+    public void ToGuid_Creates_Expected_Guid(int input, string expected)
+    {
+        var result = input.ToGuid();
+        Assert.AreEqual(expected, result.ToString());
+    }
+
+    [TestCase("00000014-0000-0000-0000-000000000000", 20)]
+    [TestCase("0000006a-0000-0000-0000-000000000000", 106)]
+    [TestCase("000f423f-0000-0000-0000-000000000000", 999999)]
+    [TestCase("211d1ae3-0000-0000-0000-000000000000", 555555555)]
+    [TestCase("0d93047e-558d-4311-8a9d-b89e6fca0337", null)]
+    public void TryParseFromGuid_Parses_Expected_Integer(string input, int? expected)
+    {
+        var result = IntExtensions.TryParseFromGuid(Guid.Parse(input), out int? intValue);
+        if (expected is null)
+        {
+            Assert.IsFalse(result);
+            Assert.IsFalse(intValue.HasValue);
+        }
+        else
+        {
+            Assert.IsTrue(result);
+            Assert.AreEqual(expected, intValue.Value);
+        }
+    }
+}