XamarinCommunityToolkit [Bug] iOS Xamarin Community Toolkit TabView only opens to the first tab

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Description

I am trying to navigate to the second tab when I open the tabview.

Steps to Reproduce

Start the app

Expected Behavior

Work like android and open to the second tab because we set the selected index to 1.

Actual Behavior

Always opens to the first tab.

Basic Information

Version with issue: Xamarin.Community Toolkit 1.1.0
Affected Devices: reproduce on an iPhone 11 Pro (iOS version 14.5)

Environment

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Microsoft Visual Studio Enterprise 2019
Version 16.10.0
VisualStudio.16.Release/16.10.0+31321.278
Microsoft .NET Framework
Version 4.8.04084

Installed Version: Enterprise

Visual C++ 2019   00435-60000-00000-AA373
Microsoft Visual C++ 2019

ASP.NET and Web Tools 2019   16.10.525.31942
ASP.NET and Web Tools 2019

ASP.NET Web Frameworks and Tools 2019   16.10.525.31942
For additional information, visit https://www.asp.net/

Azure App Service Tools v3.0.0   16.10.525.31942
Azure App Service Tools v3.0.0

Azure Functions and Web Jobs Tools   16.10.525.31942
Azure Functions and Web Jobs Tools

C# Tools   3.10.0-4.21269.26+029847714208ebe49668667c60ea5b0a294e0fcb
C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Common Azure Tools   1.10
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

EMDKProfileManagerWizardVS   1.0
EMDK for Xamarin

Extensibility Message Bus   1.2.6 (master@34d6af2)
Provides common messaging-based MEF services for loosely coupled Visual Studio extension components communication and integration.

IntelliCode Extension   1.0
IntelliCode Visual Studio Extension Detailed Info

Microsoft Azure Tools   2.9
Microsoft Azure Tools for Microsoft Visual Studio 2019 - v2.9.40423.1

Microsoft Continuous Delivery Tools for Visual Studio   0.4
Simplifying the configuration of Azure DevOps pipelines from within the Visual Studio IDE.

Microsoft JVM Debugger   1.0
Provides support for connecting the Visual Studio debugger to JDWP compatible Java Virtual Machines

Microsoft Library Manager   2.1.113+g422d40002e.RR
Install client-side libraries easily to any web project

Microsoft MI-Based Debugger   1.0
Provides support for connecting Visual Studio to MI compatible debuggers

Microsoft Visual C++ Wizards   1.0
Microsoft Visual C++ Wizards

Microsoft Visual Studio Tools for Containers   1.2
Develop, run, validate your ASP.NET Core applications in the target environment. F5 your application directly into a container with debugging, or CTRL + F5 to edit & refresh your app without having to rebuild the container.

Microsoft Visual Studio VC Package   1.0
Microsoft Visual Studio VC Package

Mono Debugging for Visual Studio   16.10.15 (552afdf)
Support for debugging Mono processes with Visual Studio.

NuGet Package Manager   5.10.0
NuGet Package Manager in Visual Studio. For more information about NuGet, visit https://docs.nuget.org/

Office Developer Tools for Visual Studio   16.0.31130.00
Microsoft Office Developer Tools for Visual Studio

ProjectServicesPackage Extension   1.0
ProjectServicesPackage Visual Studio Extension Detailed Info

Razor (ASP.NET Core)   16.1.0.2122504+13c05c96ea6bdbe550bd88b0bf6cdddf8cde1725
Provides languages services for ASP.NET Core Razor.

Snapshot Debugging Extension   1.0
Snapshot Debugging Visual Studio Extension Detailed Info

SQL Server Data Tools   16.0.62105.04180
Microsoft SQL Server Data Tools

StylerPackage Extension   1.0
StylerPackage Visual Stuido Extension Detailed Info

TypeScript Tools   16.0.30429.2002
TypeScript Tools for Microsoft Visual Studio

Visual Basic Tools   3.10.0-4.21269.26+029847714208ebe49668667c60ea5b0a294e0fcb
Visual Basic components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Visual F# Tools   16.10.0-beta.21262.7+1b23bbeda88ea3cb9be9af777f4c99fa8663df81
Microsoft Visual F# Tools

Visual Studio Code Debug Adapter Host Package   1.0
Interop layer for hosting Visual Studio Code debug adapters in Visual Studio

Visual Studio Container Tools Extensions   1.0
View, manage, and diagnose containers within Visual Studio.

Visual Studio Spell Check Everywhere   VSSpellCheckEverywhere
An extension that enables spell checking within any Visual Studio file editor or tool window that uses WPF text boxes.
https://GitHub.com/EWSoftware/VSSpellChecker

Visual Studio Spell Checker   VSSpellChecker
An editor extension that checks the spelling of comments, strings, and plain text as you type or interactively with tool windows.
https://GitHub.com/EWSoftware/VSSpellChecker

Visual Studio Tools for Containers   1.0
Visual Studio Tools for Containers

VisualStudio.DeviceLog   1.0
Information about my package

VisualStudio.Foo   1.0
Information about my package

VisualStudio.Mac   1.0
Mac Extension for Visual Studio

WiX Toolset Visual Studio Extension   1.0.0.4
WiX Toolset Visual Studio Extension version 1.0.0.4
Copyright (c) .NET Foundation and contributors. All rights reserved.

Workflow Manager Tools 1.0   1.0
This package contains the necessary Visual Studio integration components for Workflow Manager.

Xamarin   16.10.000.228 (d16-10@1c8354c)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin Designer   16.10.0.115 (remotes/origin/c750fbf1bde3c720d077f51640fe197c6dac7cbe@c750fbf1b)
Visual Studio extension to enable Xamarin Designer tools in Visual Studio.

Xamarin Templates   16.10.5 (355b57a)
Templates for building iOS, Android, and Windows apps with Xamarin and Xamarin.Forms.

Xamarin.Android SDK   11.3.0.1 (d16-10/22fc2b3)
Xamarin.Android Reference Assemblies and MSBuild support.
    Mono: b4a3858
    Java.Interop: xamarin/java.interop/d16-10@f39db25
    ProGuard: Guardsquare/proguard/v7.0.1@912d149
    SQLite: xamarin/sqlite/3.35.4@85460d3
    Xamarin.Android Tools: xamarin/xamarin-android-tools/d16-10@c5732a0


Xamarin.iOS and Xamarin.Mac SDK   14.20.0.1 (fe0e2c518)
Xamarin.iOS and Xamarin.Mac Reference Assemblies and MSBuild support.