TabView TearOutTabs: New window is moved at exponential speed

[bjorn-malmo]

Describe the bug

When the new window has been created with a new tab in it, it will move with some kind of multiple of the mouse movement if it is a tab at the end of the tab list, and there are more than two tabs present. Please see the attached screen clip for an example.

The same happens if the first tab is dragged, but the window is moved to the left on the screen instead.
The same thing appears to happen always if the created window's tabview is empty (no tabs) when created.

Steps to reproduce the bug

See TabTearOutExample on GitHub:
https://github.com/[bjorn-malmo/bug-free-happiness](https://github.com/bjorn-malmo/bug-free-happiness)

Expected behavior

No response

Screenshots

screen.mp4

NuGet package version

WinUI 3 - Windows App SDK 1.6.3: 1.6.241114003

Windows version

Windows 11 (24H2): Build 26100

Additional context

No response

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• TabView TearOutTabs: Visual artifacts are generated immediately after TabTearOutWindowRequested is raised (#10155), similarity score: 0.83

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