The inverted boundary is misleading

It seems like the route snapper doesn't work, but it's fine -- see the render-gj mode for proof. Problem is keeping ways that cross the original clip.

Look at the route snapper code and the render-gj mode to understand the issue with inverted boundaries and ways crossing the original clip. Start by examining the relevant modules for clipping and snapping logic, then run tests or examples in render-gj mode to see the problem in action.

Written by the indexing model from the issue text.