Alex J Mueller

@soerendomroes I came up with a minimal repro that causes the same error but with a very different layout [here](https://rtsys.informatik.uni-kiel.de/elklive/elkgraph.html?compressedContent=OYJwhgDgFgBAdgBgFBgDbAPYgJYBcoC2AXDFsAHQCmAxqthAM6VWoDW5qYAnpSJQCZIo2XmBDUoXABJg4-OnGAkAkgDkAwgBkAqgBEAogH11U5Zt0AlfaqQB6WzHVRZwSjFwYYF5QHEpAFRhZfncoN14QLBhMSgYggHduJEo2cn5sPmpcbAw4El0AeQB1GyQ4DH43SIxcGABvJBh4CrdQYIgxSjhahqam8sqYDr5u+sa+pvsvSgIMADc3fGw46lyGXHBsUeDQ8JBIkGiMWISkiaaILFx1NY2wLdwGEgAxZQANfV1DAGVlA3GJpwAEYpGAAIgACgBGMEAvoDNwSbCoEK9c5NYGgsHqWHogC+cIJEwRQ063QATGN0VMCnBUFxSHA3MMurUmQI4q8Pl9fgZ3J5qGAAK5MXYwCJYOGTByXEDXW6bbpPGBcz4-P76KUwTGocEQ8m4vpEmDGkkYIWPbCDOrGqYWGbzcJ4MKHDAAM12ooErjiO3wewORxOYESXHG3vC-FcUJIbTkLO65ATuHISJRMAAtAA+UgWhhWtxojFgEG6sH6GHjY0R8VRyjk2PgeNklPJynZ3OW61wnXg-QGqtIAlAA). Edit: Slightly shorter repro using only one edge and one...