[Android] TextField password becomes visible

On Android 10 on Google Pixel 4 Phone the TextField used as password field, is only partially masked.
Entering abc and space changes them to 4 dots, but then adding 123 makes it again visible as plaintext
Setting QT_ANDROID_ENABLE_WORKAROUND_TO_DISABLE_PREDICTIVE_TEXT does not cause any change in behaviour.

import QtQuick 2.12 
import QtQuick.Window 2.12 
import QtQuick.Controls 2.12 

Window { 
visible: true 
width: 640 
height: 480 

TextField { 
echoMode: TextInput.Password 
inputMethodHints: Qt.ImhSensitiveData | Qt.ImhEmailCharactersOnly | 
Qt.ImhNoAutoUppercase | Qt.ImhNoPredictiveText 
} 
}