x:Bind TwoWay is not reflected back to binded property if binding to method and setting ConvertBack

[FrozDark]

Current behavior

Using bind like this
Text="{x:Bind ConvertToString(TextNumber2), BindBack=ConvertToNumber, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"

Text change is not reflected to a property TextNumber2 but BindBack method ConvertToNumber is invoking. It behaves like OneWay bind

In the repro it's second TextBox control

Expected behavior

Reflect changes from controls back to binded property

How to reproduce it (as minimally and precisely as possible)

UnoIssue.zip

Workaround

Not use of method or TwoWay bind

Works on UWP/WinUI

Yes

Environment

Uno.WinUI / Uno.WinUI.WebAssembly / Uno.WinUI.Skia

NuGet package version(s)

Uno.Sdk: 5.5.56

Affected platforms

WebAssembly, Android, iOS, Mac Catalyst, Skia (WPF), Skia (Linux X11), Skia (macOS), Skia (Linux Framebuffer), Skia (GTK)

IDE

Visual Studio 2022

IDE version

No response

Relevant plugins

No response

Anything else we need to know?

Tested on android but I think it's related to codegeneration of xaml and affects all uno platforms