Differing reactive behaviour when triggered by a Button or a Select widget

[heaysa]

I've been attempting to create a page which shows the status of a long-running process when a button is pressed etc. I'm trying to understand a behaviour difference when clicking a button or setting a value with a Select widget.

In the example below, clicking the button triggers a 1s process and a visible temporary "running" status. Using a Select to trigger the process works but the status is not kept up to date.

Perhaps I am missing something key about the "on_value" call back of Select.

import solara as sl
import time

@sl.component
def Page():
    status,set_status = sl.use_state('ready')
    value,set_value = sl.use_state(0)

    def run():
        set_status('running')
        time.sleep(1)
        set_value(value+1)
        set_status('ready')

    with sl.Column():
        sl.Text(f'value = {value}')
        sl.Text(f'status = {status}')
        sl.Button(label='Add with button', on_click=run,)
        sl.Select(
            label='Add with select',
            values=('1','2'),
            value=None,
            on_value=lambda value:run())