QML TextInput and TextEdit do not accept commit input method event on losing focus

To reproduce:

• have input context using preedit text for input, and reset() implementation committing that preedit.
• have two TextInput or TextEdit elements, start writing in the first one and change the focus to the second one.

Excepted outcome:
Existing preedit to get committed in the first element.

Actual outcome:
Preedit gets lost.

Tested with meego virtual keyboard. Works fine for QLineEdit and QTextEdit.