RTL languages not handled correctly if starts with LTR word

Bi-directional texts are rendered incorrectly if they start with a Left to Right word.

on attached pictures it should show text with this sequence from right to left
1) PHP 5.5.0
2) پشتیبانی از ویندوز
3) XP
4) را حذف می‌کند

If i add an RTL Letter it shows the text correctly (second attachment on QLineEdit)