Mac: QCursor::setPos does nothing

1. Run the sample app.
2. Click anywhere in the window, the cursor does not move anywhere (it is supposed to go to the center).
3. Uncommenting the line 21 in myWidget.mm produces the expected behaviour.

It seems like calling the Cocoa function CGWarpMouseCursorPosition(...) works as expected but QCursor::setPos does nothing. Only observed on macOS 10.14.