x:Bind with Mode=OneTime triggers multiple times

[Mangepange]

Describe the bug

I have an x:Bind with its mode set to OneTime, and it fetches its value three times. I first noticed this issue with a TabView, when a binding in my DataTemplate for a TabViewItem triggered multiple times. But I've tried to create a simpler example.

Steps to reproduce the bug

The Text-binding for the TextBlock within the DataTemplate triggers 3 times, and thus the displayed text is "A text 3".
The UserControl is put directly into a Window, and nothing ever changes.

Expected behavior

The binding should only be triggered once, and the displayed text should read "A text 1"

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.5.3: 1.5.240428000

Windows version

No response

Additional context

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one. Thank you!

Open similar issues:

• element not updated when x:Bind to DependencyProperty in One way mode but works fine in Two way (#8903), similarity score: 0.74
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• x bind function does not work within datatemplate (#7810), similarity score: 0.72

Closed similar issues:

• WinUI 3: x:Bind codegen is broken and produce infinite setter calling while using with TwoWay mode (#8441), similarity score: 0.74

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[Mangepange]

Using Binding solves the issue, but still a bug. Might be slightly related to #7810.