preventDefault on beforeTextChange event can block all input

### Problem description

On Android when calling preventDefault on the beforeTextChange event object causes not just the current key press but all following to not be printed.

### Expected behavior

Block only the input for which preventDefault was called.

### Environment

- Tabris.js version: 3.7.1
- Device: OnePlus 7 Pro
- OS: Android 10

### Code snippet

https://github.com/eclipsesource/tabris-js/blob/master/snippets/textinput-validation.ts