Qt Creator crashes after invoking quick fix

When I press Alt+Enter on QPlainTextEdit or QTextEdit Qt Creator crashes:

if( QLineEdit *edt = 0 ) {
} else if( QPlainTextEdit *ptxt = 0 ) {
} else if( QTextEdit *txt = 0 ) {
}

It doesn't make a difference if the include for the classes is already present or not.