Container on_click callback breaks containers without explicit size

[mikaelho]

Using flet 0.1.43.

With this code, I get a full screen red box, as expected:

import flet
from flet import Container, Page, colors

def main(page: Page):
    page.add(Container(expand=True, bgcolor=colors.RED))
    page.update()

flet.app(target=main)

If I add an on_click handler, the container breaks in mysterious ways:

• Light grey background
• Runs over the bottom of the screen
• Mouse pointer shows that the container is clickable, but the callback does not work (even with Fix Container on_click callback #139 in place).

import flet
from flet import Container, Page, colors

def was_clicked(event):
    print("Clicked")

def main(page: Page):
    page.add(Container(expand=True, bgcolor=colors.RED, on_click=was_clicked))
    page.update()

flet.app(target=main)

If I give the container a fixed size, all is good and the callback works.

import flet
from flet import Container, Page, colors

def was_clicked(event):
    print("Clicked")

def main(page: Page):
    page.add(Container(width=100, height=100, bgcolor=colors.RED, on_click=was_clicked))
    page.update()

flet.app(target=main)