The pull request is in to fix the resize freeze.
github.com/aros-development-team/AROS/pull/819
It's basically removing things that choke with the events and also drop the events we can't handle in the queue. I have an automatic test that helped me confirm the probleme is fixed on my side. Going from always freezing to never freezing... If that works, I also have the fix for the redraw problem that comes with it 😉