Regression caused by 2be143e

After 2be143e, if user opts to spell
a word him/herself instead of using the suggested word list, the
result is incorrect. The existing preedit string is committed,
then cursor is moved to the beginning and user written word is
added. E.g. user writes 'tadaa' then selects to spell it again and
writes 'radar', in editor there is 'radartadaa'.

Regression is caused due to storing the cursor pointer even in cases
where there is no stored preedit string.

Task-number: QTBUG-22147
Reviewed-by: Miikka Heikkinen

Author: Sami Merila

src/gui/inputmethod/qcoefepinputcontext_s60.cpp

@@ -164,7 +164,7 @@ void QCoeFepInputContext::reset()
     // text.
     if (m_cachedPreeditString.isEmpty() && !(currentHints & Qt::ImhNoPredictiveText)) {
         m_cachedPreeditString = m_preeditString;
-        if (focusWidget()) {
+        if (focusWidget() && !m_cachedPreeditString.isEmpty()) {
             int cursor = focusWidget()->inputMethodQuery(Qt::ImCursorPosition).toInt();
             int anchor = focusWidget()->inputMethodQuery(Qt::ImAnchorPosition).toInt();
             if (cursor == anchor)