MauiRecycleBug

This sample demonstrates the CollectionView not recycling properly in WinUI.

Repro:

Create a CollectionView
Fill it with items
Scroll up and down in the CollectionView
Watch the Debug output.

Android

A small number of CollectionItem instances are created and these are recycled.
Example Debug output:
Created CollectionItem. InstanceId: 12. There are 12 instances allocated

WinUI

A new CollectionItem is created every time an instance scrolls into view.
Example Debug output:
Created CollectionItem. InstanceId: 133. There are 133 instances allocated

Scrolling quickly to the end and back (e.g. by dragging the scroll-bar) causes a crash

Scrolling slowly can eventually instigate an item being garbage-collected
Example Debug output:
Collected CollectionItem. InstanceId: 9. There are 129 instances allocated

Related: The DataTemplate has a CheckBox.

1. The CheckBox is rendered incorrectly until the Window is resized horizontally.
   1. Should I open a new bug for this?
2. Having the CheckBox present in the DataTemplate causes a LOT of memory to be consumed.
   1. Is this also a bug?