Long Ass Ways don't paint if you're in the middle of them

[eliath]

We paint ways by getting all nodes in the viewport and painting their ways. However, if a way is sufficiently large, the endpoints (nodes) will be outside the viewport and the ways won't be painted!! How can we fix this? It's worse if we are zoomed in... because the viewport becomes smaller and the ways don't have to be that long to not be painted.