QtQuick apps move top and left after device rotation with opened FileDialog on an iPhone

Repro steps:

1) Open FileDialog (which is shown as PopOver on iPhones) while device is in Portrait orientation 

2) Rotate device to change orientation to Landscape

3) Close FileDialog or pick something

As you can see at attached photo Main Scene moved top and left.

Also I did some tests and noticed that in normal situation (when device rotates without FileDialog over the scene) QPlatformWindow::safeAreaMargins() returns QMargins(44, 0, 44, 21) as [[UIApplication sharedApplication].keyWindow safeAreaInsets] does. But in this particular case QPlatformWindow::safeAreaMargins() returns QMargins(0, 0, 0, 0) unlike [[UIApplication sharedApplication].keyWindow safeAreaInsets] which returns (top = 0, left = 44, bottom = 21, right = 44)