Comment 4 for bug 713617

There is a workaround for this problem. Not that it completely fixes everything but at least it doesn't crash anymore. The thing you have to do is to comment out two commands in the function Edge::makeReciprocal (//prepareGeometryChange(); //m_reciprocal= true;). After that edges don't become reciprocal anymore, but you can fix it using the command Symmetrize links. Works for version 0.90 QT 4.7.3 Ubuntu 11.10.