[v8] - Cannot select time in DateTimePicker with `timePickerProps={{ withDropdown: true }}`

[gray pond]

DateTimePickers with timePickerProps={{ withDropdown: true }} close the whole picker when you select any part of the time in the timePicker's dropdown, and the value doesn't get updated.

Codesandbox: https://codesandbox.io/p/devbox/stoic-bogdan-2yjpgf?file=%2Fsrc%2FApp.tsx%3A7%2C1

[prime tundra]

You need to set withinPortal: false in timePickerProps