No page re-render despite change in reactive value

[iisakkirotko]

On initial load, the page is not re-rendered even though the value of a reactive variable changes. In the example below, when the page is initially loaded, the value of var, as displayed in the Text component is None, even though in both the InputText and via clicking on the button, we find that the value has actually changed to become '!!!', see screenshot.

import solara

var = solara.Reactive(None)

def on_click():
    print(var)

@solara.component
def BugComponent(
    value: solara.Reactive[str],
    on_value = None,
):
        
    def on_change(event_value):
        value.set(event_value)

    if value.value is None:
        value.set('!!!')

    return solara.InputText(label='', value=value, on_value=on_change)

@solara.component
def Page():
    BugComponent(value = var)

    solara.Text(f"{var}")
    solara.Button('click', on_click=on_click)