FilePicker.PickMultipleAsync does not wait and just returns null on Mac

[datvm]

Description

Calling FilePicker.PickMultipleAsync on Mac shows the Open dialog. However before user has anything to do with the dialog, the code jumps to the next instruction right away (my code has await).

    async Task OnClick()
    {
        this.files = await FilePicker.PickMultipleAsync();

        // Just to be sure
        System.Diagnostics.Debugger.Break();
        this.StateHasChanged();
    }

Steps to Reproduce

1. Create a new MAUI Blazor project.
2. Add the above code for any button or event handler.
3. Click the button.
4. The Open file dialog shows up but the code does not stop and wait. Instead, the next line of code is executed and the returned value is null.

Link to public reproduction project repository

https://github.com/datvm/MauiPickMultipleAsyncMacBug

Version with bug

7.0 (current)

Last version that worked well

Unknown/Other

Affected platforms

macOS

Affected platform versions

Mac 13.0.1 (22A400)

Did you find any workaround?

No response

Relevant log output

No response

[rachelkang]

Duplicate of #11088