mouseMoveEvent fired without mouse being really moved (Mac only)

If you keep clicking (left button or touch pad) and do not move mouse, mouseMoveEvent still gets fired, though this always gives same mouse position but triggers code wrote against mouseMove.

This problem happens on QtQuick also. This works great on windows.

Attached example reproduces it:

Steps to reproduce:
1. Run the app on macOS.
2. Place your mouse over the window and start clicking (left mouse button), but do not move the mouse.
3. Notice in the logging, mouseMove is happening with identical mouse coordinates.