Crash in TextField with TextCapitalization.WORDS

[Jorwinn]

Duplicate Check

• I have searched the opened issues and there are no duplicates

Describe the bug

When using a TextField in Flet with capitalization=ft.TextCapitalization.WORDS, if the user types three consecutive spaces, the application crashes. Instead, macOS displays a system crash report for the Flet executable.

Code sample

Code

import flet as ft


def main(page: ft.Page):

    # Write 3 spaces in the TextField
    page.add(
        ft.TextField(
            autofocus=True,
            capitalization=ft.TextCapitalization.WORDS,
        ),
    )


ft.app(target=main)

To reproduce

1. Run the code.
2. Press the spacebar three times.
3. The application crashes, and macOS shows an error report.

Expected behavior

The application should not crash. Instead, it should allow multiple spaces without issues, or at least handle the input safely.

Screenshots / Videos

Captures

Operating System

macOS

Operating system details

Big Sur 11.7.10

Flet version

0.26.0

Regression

I'm not sure / I don't know

Suggestions

No response

Logs

Logs

No Python traceback was generated.

Additional details

No response

[ndonkoHenri]

I was able to repro: