Comment 17 for bug 1803485

lp:1804691 is fixed. I still think the zero-length track thing may be due to the same bug. Essentially that bug was keeping the nets from updating, so perhaps this would somehow keep the zero-length tracks from getting cleaned up? See the link to 1804691 just above to see an image of the difftool result between the buggy and fixed source code, to get your bearings. I'm not familiar with this code base at all so I can't speak to it.