Long text not displayed correctly in TextBox over 12k lines

[JMLCelec]

Describe the bug

After 12108 lines in a TextBox, the text is not visible but seems to be taken into account in selection.

Steps to reproduce the bug

Put a long text in TextBox with more than 12110 lines.

Expected behavior

No response

Screenshots

NuGet package version

WinUI 3 - Windows App SDK 1.5.5: 1.5.240627000

Windows version

Windows 11 (22H2): Build 22621

Additional context

No response

[github-actions]

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Closed similar issues:

• The TextBox component renders abnormally (#9518), similarity score: 0.85

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[codendone]

This is a duplicate of #1842.