[Combobox] Cannot focus last remaining item in multiple selection mode via keyboard

[halljus]

Description

When I remove all but one item in a multiple selection Combobox using the keyboard, I expect to be able to focus (and remove) the last one, but I am unable to do so (arrow keys do not focus the last remaining item).

Steps to reproduce

1. Go to https://sparkui.vercel.app/?path=/docs/components-combobox--docs#default-1
2. Focus the input
3. Press Left Arrow twice to focus the "To Kill a Mockingbird" selected item
4. Press Delete to remove the selected item
5. Press Tab to focus the input again
6. Press Left Arrow

I expected it to focus the last remaining selected item ("War and Peace"), but it doesn't seem to move focus.

Spark Component and Version

@spark-ui/[email protected]

Browser

Microsoft Edge 129

Operating System

• macOS
• Windows
• Linux

Additional Information

No response