While this behavior might be useful for single selection comboboxes, it is an unexpected behavior, when you template the combobox items to achieve a multiselection behavior. Is it possible to disable the behavior that the selected item is removed from the available items list?

What would you like clarification on:

I read that Uno renders all controls in Windows style and there is an option somewhere deep in Uno to have some of the controls render in native OS style.

I believe it's crucial to be able to switch an application's (or page's) property to render controls using native styles wherever applicable (and to be able to switch back to Windows style again when

Describe the bug
Adding a reference to a ClassLibrary project from a UWP application project generates a XAML compiler warning.

Steps to reproduce the bug

1. Open Visual Studio 2019 (or 2017)
2. Create a new Universal Windows Class Library project
3. Create a new Universal Windows Application project in the same solution
4. Add a reference to the Class Library project from the Appl