Bug: shift_enter does not work as expected

making a textfield shift_enter true works as expected, however leaving it alone or making it false makes both enter and shift_enter work the same, they just go to a new line

def main(page: ft.Page):
    page.add(
        ft.TextField(
            label="Auto adjusted height with max lines",
            multiline=True,
            min_lines=1,
            max_lines=3,
            # shift_enter=True,
            on_submit= lambda e: print("Submitted"),
        ),
    )


ft.app(target=main)

with the shift_enter line uncommented I get an on_submit as expected, with it commented, I do not get an on_submit

Name: flet
Version: 0.4.2
Summary: Flet for Python - easily build interactive multi-platform apps in Python
Home-page: 
Author: Appveyor Systems Inc.
Author-email: hello@flet.dev
License: Apache-2.0
Location: /Users/gregor.brandt/Documents/Startbridge/web-app2/fe_env/lib/python3.11/site-packages
Requires: flet-core, httpx, oauthlib, packaging, watchdog, websocket-client, websockets
Required-by: 

Operating system:

Additional environment details:

Run the provided Python TextField example with Flet 0.4.2, comparing shift_enter=True with the default or false setting. Trace the TextField submit and newline behavior from this reproduction; done means Enter and Shift+Enter follow the documented distinct behavior and on_submit is triggered as expected.