In the next release (0.1.8) will fix most of the segment intersection problems that are in the subversion now. The code in subversion now has the updated sorting and segment intersection code compared with version 0.1.6 and 0.1.7 .
Finding trace edges is much more robust now. However, it will only work for round vias. There is also a few other bug fixes. This is a much closer to a usable version than previous versions.
The new release has several important bug fixes. Sorting the segments in a trace is more reliable. Also some improvement to the way trace edges are found.