QLineEdit::setcursorPosition( 0 ) does not repaint correctly the text if alignment changed

QLineEdit::setCursorPosition( 0 ) shifts the text of the lineedit to the right, which leads to a bad display.
This happens if the alignment of the QLineEdit has been changed.

You can find attached a sample that reproduces the issue. The sample uses _sleep() and processEvents() to mimic what happens in our real program.

if you comment the last setCursorPosition(0), the display is correct.

Attached screenshot shows (left) the result ; if you resize the lineedit, it is displayed correctly (right).