ListView/ItemsRepeater layout broken

[minesworld]

Describe the bug

• both ListView and ItemsRepeater will layout only correctly if the Items fit within their ScrollView(er)
• ListView will NEVER correctly layout horizontally and attach Items on Top - its always centered

Steps to reproduce the bug

1. load project from https://github.com/minesworld/WindowsAppSDK-LayoutBugs
2. build
3. try out the different DataTemplates
4. change the number of Items shown so scrolling is possible
5. try out the different DataTemplates and scroll

Expected behavior

• layout is done ALWAYS in the correct way

Screenshots

NuGet package version

WinUI 3 - Windows App SDK 1.0

Windows app type

• UWP
• Win32

Device form factor

Desktop

Windows version

Windows 11 (21H2): Build 22000

Additional context

• will file a proposal that the API documentation & the XAML Gallery App are updated to prevent other from wasting a lot of time...
• a quick "how-to workaround" would be helpfull, like a code example how to layout the items instead on relying on the broking AppSDK layout which tries to be a jack-of-all-kinds but is a master only of the simplest ones... (pun intended)

[github-actions]

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