[Bug] When using WkWebViewRenderer, certain Target="_blank" links don't work even after implementing our own CreateWebView

Description

We are trying to open a certain link that is set to open in a new window. We have set the UIDelegate to 'this' in OnElementChanged in our WkWebViewRenderer and implemented CreateWebView, telling it to open in the current webview if the action.Request.URL is null, as per #8028. This works, but only the second time the link is tapped. The first time produces an error saying that popups are blocked by the browser. Our WkWebViewRenderer CreateWebView looks like this:

[Export("webView:createWebViewWithConfiguration:forNavigationAction:windowFeatures:")]
public WKWebView CreateWebView(WKWebView webView, WKWebViewConfiguration configuration, WKNavigationAction action, WKWindowFeatures features)
        {
            if (action.Request.Url != null)
            {
                webView.LoadRequest(action.Request);
            }

            return null;
        }

And we set the WeakUIDelegate in OnElementChanged like this:

protected override void OnElementChanged(VisualElementChangedEventArgs e)
        {
            try
            {
                base.OnElementChanged(e);

                if (NativeView != null)
                {
                    WeakUIDelegate = this;
                }
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex);
            }
        }

Steps to Reproduce

Navigate to https://app.senecalearning.com and click login (top right of the page)
Click continue with Microsoft or Google
Observe that this does not work. No navigation happens. A popup blocked message appears.
Tap the same link again and CreateWebView is hit this time and the link is followed in the same webview.

Expected Behavior

The link to sign in via Google or Microsoft is followed the first time the link is tapped.

Actual Behavior

The link to sign in via Google or Microsoft is followed the second time the link is tapped.

Basic Information

Version with issue: Xamarin.Forms 5.0.0.2545
Platform Target Frameworks:
- iOS: 16.4

Environment

Show/Hide Visual Studio info

``` Visual Studio Community 2022 for Mac Version 17.6 (build 1575) Installation UUID: 501d84cc-0ec9-409a-adce-fbd64a2d3e64 Runtime .NET 7.0.3 (64-bit) Architecture: Arm64 Microsoft.macOS.Sdk 13.1.1007; git-rev-head:8afca776a0a96613dfb7200e0917bb57f9ed5583; git-branch:release/7.0.1xx-xcode14.2 Roslyn (Language Service) 4.6.0-3.23180.6+99e956e42697a6dd886d1e12478ea2b27cceacfa NuGet Version: 6.4.0.117 .NET SDK (Arm64) SDK: /usr/local/share/dotnet/sdk/7.0.304/Sdks SDK Versions: 7.0.304 7.0.203 7.0.202 7.0.201 7.0.200 7.0.103 7.0.102 7.0.101 7.0.100 6.0.410 6.0.408 6.0.407 6.0.406 6.0.405 6.0.404 6.0.403 6.0.402 6.0.401 6.0.400 6.0.302 MSBuild SDKs: /Applications/Visual Studio.app/Contents/MonoBundle/MSBuild/Current/bin/Sdks .NET SDK (x64) SDK Versions: 7.0.304 7.0.203 7.0.202 7.0.201 3.1.426 3.1.425 3.1.424 3.1.423 3.1.422 3.1.421 .NET Runtime (Arm64) Runtime: /usr/local/share/dotnet/dotnet Runtime Versions: 7.0.7 7.0.5 7.0.4 7.0.3 7.0.2 7.0.1 7.0.0 6.0.18 6.0.16 6.0.15 6.0.14 6.0.13 6.0.12 6.0.11 6.0.10 6.0.9 6.0.8 6.0.7 .NET Runtime (x64) Runtime: /usr/local/share/dotnet/x64/dotnet Runtime Versions: 7.0.7 7.0.5 7.0.4 7.0.3 3.1.32 3.1.31 3.1.30 3.1.29 3.1.28 3.1.27 Xamarin.Profiler Version: 1.8.0.49 Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler Updater Version: 11 Xamarin Designer Version: 17.6.3.9 Hash: 2648399ae8 Branch: remotes/origin/d17-6 Build date: 2023-06-14 17:05:55 UTC Apple Developer Tools Xcode: 14.3.1 21815 Build: 14E300c Xamarin.Mac Version: 9.3.0.6 Visual Studio Community Hash: 97731c92c Branch: xcode14.3 Build date: 2023-04-11 22:38:35-0400 Xamarin.Android Version: 13.2.0.6 (Visual Studio Community) Commit: xamarin-android/d17-5/a200af1 Android SDK: /Users/georgefoulds/Library/Developer/Xamarin/android-sdk-macosx Supported Android versions: 12.0 (API level 31) 11.0 (API level 30) 9.0 (API level 28) 13.0 (API level 33) SDK Command-line Tools Version: 7.0 SDK Platform Tools Version: 33.0.2 SDK Build Tools Version: 33.0.0 Build Information: Mono: 6dd9def Java.Interop: xamarin/java.interop/d17-5@149d70fe SQLite: xamarin/sqlite/3.40.1@68c69d8 Xamarin.Android Tools: xamarin/xamarin-android-tools/d17-5@9f02d77 Microsoft Build of OpenJDK Java SDK: /Library/Java/JavaVirtualMachines/microsoft-11.jdk 11.0.16.1 Android Designer EPL code available here: https://github.com/xamarin/AndroidDesigner.EPL Eclipse Temurin JDK Java SDK: /Library/Java/JavaVirtualMachines/temurin-8.jdk 1.8.0.302 Android Designer EPL code available here: https://github.com/xamarin/AndroidDesigner.EPL Android SDK Manager Version: 17.6.0.50 Hash: a715dca Branch: HEAD Build date: 2023-06-14 17:06:00 UTC Android Device Manager Version: 0.0.0.1309 Hash: 06e3e77 Branch: HEAD Build date: 2023-06-14 17:06:00 UTC Xamarin.iOS Version: 16.4.0.6 Visual Studio Community Hash: 97731c92c Branch: xcode14.3 Build date: 2023-04-11 22:38:36-0400 Build Information Release ID: 1706001575 Git revision: d32bcc352feed2f1f54e237e23e5c375d86eaf9e Build date: 2023-06-14 17:04:07+00 Build branch: release-17.6 Build lane: release-17.6 Operating System Mac OS X 13.0.1 Darwin 22.1.0 Darwin Kernel Version 22.1.0 Sun Oct 9 20:15:52 PDT 2022 root:xnu-8792.41.9~2/RELEASE_ARM64_T8112 arm64 Enabled user installed extensions MFractor 5.1.0 ```

xamarin / Xamarin.Forms