[Bug] CarouselView.VisibleViews property was shared among with all carouselview

[myroot]

Description

CarouselView.VisibleViews should be provide for each carouselview, but a same VisibleViews was provided

According to this line, new ObservableCollection<View>() is provided by default value

Xamarin.Forms/Xamarin.Forms.Core/Items/CarouselView.cs

Line 29 in a8bcaa9

static readonly BindablePropertyKey VisibleViewsPropertyKey = BindableProperty.CreateReadOnly(nameof(VisibleViews), typeof(ObservableCollection<View>), typeof(CarouselView), new ObservableCollection<View>());

But according to GetValue implementation

Xamarin.Forms/Xamarin.Forms.Core/BindableObject.cs

Line 108 in a8bcaa9

return context == null ? property.DefaultValue : context.Value;

It is sharing a static value (property.DefaultValue)

So, all carouselview has a same VisibleViews

Steps to Reproduce

1. Create two CarouselView
2. Compare each VisibleViews

var carouselView = new CarouselView();
var carouselView2 = new CarouselView();
Debug.Assert(carouselView.VisibleViews != carouselView2.VisibleViews);

Expected Behavior

Should not be same

Actual Behavior

Has same instance

Basic Information

• Version with issue: 4.8.0
• Last known good version: None
• IDE:
• Platform Target Frameworks:
  • iOS:
  • Android:
  • UWP:
• Android Support Library Version:
• Nuget Packages:
• Affected Devices:

Screenshots

Reproduction Link

Workaround

[samhouts]

closed by #11827